{"product_id":"aquascape-asa-dam-lake-aerator-3-4-hp","title":"Aquascape ASA Dam \u0026 Lake Aerator, 3\/4 hp","description":"\u003cdiv class=\"myacre-pdp\"\u003e\n\u003cp class=\"ma-eyebrow\"\u003e\u003ca href=\"\/collections\/water-features\"\u003eAquascape\u003c\/a\u003e · Dam and Lake Aeration\u003c\/p\u003e\n\n\u003ch2\u003eThe owner's insights on the ASA 3\/4 hp Dam Aerator\u003c\/h2\u003e\n\u003cp\u003eThis is the size that moves a genuine body of water. Four outlets means you can place diffusers across a large dam rather than concentrating everything in one spot, which is what actually produces even circulation.\u003c\/p\u003e\n\u003cp\u003eDouble diffusers rather than single is the other difference. More air per station means a stronger upwelling column, which is what lifts cold bottom water to the surface in a deep dam where a single diffuser would stall.\u003c\/p\u003e\n\u003cp\u003eThe choice between three and four diffuser sets is about the shape of the water, not just the size. A long narrow dam wants stations spread along it. A round one may be well served by three well-placed units.\u003c\/p\u003e\n\u003cp\u003eDo not guess at this. A 3\/4 hp system is a real investment and the difference between the right configuration and the wrong one is not recoverable once the hose is laid. Call us with surface area and maximum depth before you order.\u003c\/p\u003e\n\n\u003ch3\u003eWhy bottom aeration, not a surface fountain\u003c\/h3\u003e\n\u003cp\u003eStill water separates into layers. Only a diffuser sitting on the floor can turn the whole column over, which is what actually fixes a dam.\u003c\/p\u003e\n\u003col style=\"list-style:none;margin:16px 0 0;padding:0;\"\u003e\n\u003cli style=\"position:relative;border:1px solid #E6E6E6;border-radius:10px;padding:14px 18px 14px 62px;margin:0 0 10px;background:#FFFFFF;\"\u003e\n\u003cspan style=\"position:absolute;left:18px;top:14px;width:30px;height:30px;border-radius:50%;background:#8A5A34;color:#FFFFFF;font-family:Inter,sans-serif;font-size:14px;font-weight:600;line-height:30px;text-align:center;\"\u003e1\u003c\/span\u003e\u003cstrong style=\"display:block;font-size:15.5px;color:#121417;margin:0 0 3px;\"\u003eStill water separates into layers\u003c\/strong\u003e\u003cspan style=\"display:block;font-size:14.5px;color:#4F525A;line-height:1.55;\"\u003eWarm oxygenated water sits on top. Cold, oxygen-starved water sits below it. Nothing mixes, so the bottom goes anaerobic.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"position:relative;border:1px solid #E6E6E6;border-radius:10px;padding:14px 18px 14px 62px;margin:0 0 10px;background:#FFFFFF;\"\u003e\n\u003cspan style=\"position:absolute;left:18px;top:14px;width:30px;height:30px;border-radius:50%;background:#8A5A34;color:#FFFFFF;font-family:Inter,sans-serif;font-size:14px;font-weight:600;line-height:30px;text-align:center;\"\u003e2\u003c\/span\u003e\u003cstrong style=\"display:block;font-size:15.5px;color:#121417;margin:0 0 3px;\"\u003eThat bottom layer is the problem\u003c\/strong\u003e\u003cspan style=\"display:block;font-size:14.5px;color:#4F525A;line-height:1.55;\"\u003eIt is where the smell comes from, where nutrients build up, and why the whole dam blooms green when the weather turns.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"position:relative;border:1px solid #E6E6E6;border-radius:10px;padding:14px 18px 14px 62px;margin:0 0 10px;background:#FFFFFF;\"\u003e\n\u003cspan style=\"position:absolute;left:18px;top:14px;width:30px;height:30px;border-radius:50%;background:#8A5A34;color:#FFFFFF;font-family:Inter,sans-serif;font-size:14px;font-weight:600;line-height:30px;text-align:center;\"\u003e3\u003c\/span\u003e\u003cstrong style=\"display:block;font-size:15.5px;color:#121417;margin:0 0 3px;\"\u003eDiffusers sit on the floor\u003c\/strong\u003e\u003cspan style=\"display:block;font-size:14.5px;color:#4F525A;line-height:1.55;\"\u003eA compressor on the bank pushes air down a weighted hose to diffusers resting on the bottom.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"position:relative;border:1px solid #E6E6E6;border-radius:10px;padding:14px 18px 14px 62px;margin:0 0 10px;background:#FFFFFF;\"\u003e\n\u003cspan style=\"position:absolute;left:18px;top:14px;width:30px;height:30px;border-radius:50%;background:#8A5A34;color:#FFFFFF;font-family:Inter,sans-serif;font-size:14px;font-weight:600;line-height:30px;text-align:center;\"\u003e4\u003c\/span\u003e\u003cstrong style=\"display:block;font-size:15.5px;color:#121417;margin:0 0 3px;\"\u003eRising bubbles turn the column over\u003c\/strong\u003e\u003cspan style=\"display:block;font-size:14.5px;color:#4F525A;line-height:1.55;\"\u003eThe bubbles drag cold bottom water up to the surface where it picks up oxygen. A surface fountain cannot do this, because it only ever touches the top.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eWhy you'll love the ASA 3\/4 hp Dam Aerator\u003c\/h2\u003e\n\u003cdiv class=\"ma-grid\"\u003e\n\u003cdiv class=\"ma-card\"\u003e\n\u003ch4\u003eMoves a real body of water\u003c\/h4\u003e\n\u003cp\u003eFour outlets across a large dam, rather than one spot working hard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ma-card\"\u003e\n\u003ch4\u003eDouble diffusers\u003c\/h4\u003e\n\u003cp\u003eMore air per station means a stronger upwelling column, which matters in deep water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ma-card\"\u003e\n\u003ch4\u003eIndividual flow control\u003c\/h4\u003e\n\u003cp\u003eBalance each diffuser independently once you can see how the dam responds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ma-card\"\u003e\n\u003ch4\u003eCabinet options\u003c\/h4\u003e\n\u003cp\u003eLockable and weatherproof for a machine that runs continuously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ma-card\"\u003e\n\u003ch4\u003eBetter for stock and fish\u003c\/h4\u003e\n\u003cp\u003eDissolved oxygen goes up, the anaerobic smell goes away.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ma-card\"\u003e\n\u003ch4\u003eServiceable in the field\u003c\/h4\u003e\n\u003cp\u003eRebuild kits every 18 to 24 months keep it at full output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhy you should consider an Aquascape water feature\u003c\/h3\u003e\n\u003cp\u003eAquascape originated the pondless format and holds the Pondless® trademark. The Australian arm operates from Queensland with a certified installer network behind it. Order through My Acre and we will beat any genuine like-for-like price you find elsewhere. If a warranty question ever comes up, you are calling us directly, not an overseas call centre.\u003c\/p\u003e\n\n\u003cdiv class=\"ma-cta-panel\"\u003e\n\u003ch3\u003eTell us the space before you order\u003c\/h3\u003e\n\u003cp\u003eSend us the dimensions and a photo. We will size it properly, tell you what the rock and excavation will really cost, and say so if a different kit suits you better.\u003c\/p\u003e\n\u003ca href=\"tel:1300515620\" class=\"ma-cta-btn\"\u003eCall today\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eASA 3\/4 hp Dam Aerator specifications\u003c\/h2\u003e\n\u003ctable class=\"ma-spec\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eBottom-diffused dam and lake aeration, mains powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompressor\u003c\/th\u003e\n\u003ctd\u003e3\/4 hp rocking piston, 230V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManifold\u003c\/th\u003e\n\u003ctd\u003eFour-outlet with individual flow control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiffusers\u003c\/th\u003e\n\u003ctd\u003eThree or four double diffusers on stainless steel bases, by configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHose\u003c\/th\u003e\n\u003ctd\u003e30m weighted hose per diffuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCabinet\u003c\/th\u003e\n\u003ctd\u003eLockable weatherproof cabinet on cabinet configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlacement\u003c\/th\u003e\n\u003ctd\u003eCompressor on the bank, diffusers spread across the floor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eServicing\u003c\/th\u003e\n\u003ctd\u003eRebuild kit every 18 to 24 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eMains 230V at the bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eHC550A-CAB, HC550A-3Set, HC550A-4Set, HC550A-CAB-3Set, HC550A-CAB-4Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat is included and what you supply\u003c\/h3\u003e\n\u003cp\u003eCompressor, four-outlet manifold, weighted hose and double diffusers to the configuration chosen.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn the box:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3\/4 hp rocking piston compressor\u003c\/li\u003e\n\u003cli\u003eFour-outlet manifold with individual flow control\u003c\/li\u003e\n\u003cli\u003eDouble diffusers on stainless steel bases, to the configuration selected\u003c\/li\u003e\n\u003cli\u003e30m weighted hose per diffuser\u003c\/li\u003e\n\u003cli\u003eLockable cabinet on cabinet configurations\u003c\/li\u003e\n\u003cli\u003eInstallation documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eYou supply:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA level pad for the compressor cabinet\u003c\/li\u003e\n\u003cli\u003eMains power at the bank, or panels and batteries for the solar unit\u003c\/li\u003e\n\u003cli\u003eA way to place the diffusers on the floor, usually a small boat\u003c\/li\u003e\n\u003cli\u003eTrenching if you want the airline buried\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdiv class=\"ma-faq\"\u003e\n\u003cdetails class=\"ma-q\"\u003e\u003csummary\u003eHow do I size it?\u003c\/summary\u003e\u003cdiv class=\"ma-a\"\u003e\u003cp\u003eBy surface area and depth together, not area alone. A deep dam stratifies harder than a shallow one of the same size. Call us with both numbers before you order, because getting this wrong is expensive.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ma-q\"\u003e\u003csummary\u003eThree or four diffuser sets?\u003c\/summary\u003e\u003cdiv class=\"ma-a\"\u003e\u003cp\u003eIt depends on the shape of the water as much as the size. A long narrow dam wants stations spread along its length. A rounder one may be well covered by three. Send us the dimensions and we will lay it out with you.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ma-q\"\u003e\u003csummary\u003eWhat is a double diffuser?\u003c\/summary\u003e\u003cdiv class=\"ma-a\"\u003e\u003cp\u003eTwo diffuser plates on one stainless steel base, so each station puts more air into the water. That creates a stronger upwelling column, which is what you need to lift cold water in a deep dam.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ma-q\"\u003e\u003csummary\u003eIs it safe for stock and fish?\u003c\/summary\u003e\u003cdiv class=\"ma-a\"\u003e\u003cp\u003eYes, and it usually improves both conditions. Aerated water holds more dissolved oxygen, which fish need. Stock water that is turning over does not develop the anaerobic smell that puts animals off drinking.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ma-q\"\u003e\u003csummary\u003eHow far can the airline run?\u003c\/summary\u003e\u003cdiv class=\"ma-a\"\u003e\u003cp\u003eExtension kits are available in 50m and 100m if power is a long way from the water. Running a single line to the bank and putting the manifold there also lets you balance the diffusers while watching them.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ma-q\"\u003e\u003csummary\u003eHow loud is the compressor?\u003c\/summary\u003e\u003cdiv class=\"ma-a\"\u003e\u003cp\u003eA rocking piston compressor makes a steady mechanical hum. The cabinet versions damp it considerably. Site it away from the house if you have the choice.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ma-q\"\u003e\u003csummary\u003eWhat servicing does it need?\u003c\/summary\u003e\u003cdiv class=\"ma-a\"\u003e\u003cp\u003eA rebuild kit every 18 to 24 months keeps a rocking piston compressor at full output. They are inexpensive and we stock them. Skipping them is how compressors die early.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ma-q\"\u003e\u003csummary\u003eDoes it run continuously?\u003c\/summary\u003e\u003cdiv class=\"ma-a\"\u003e\u003cp\u003eGenerally yes, though many owners run them on a timer through winter when biological demand is lower. Continuous running through summer is where the benefit is.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I size it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"By surface area and depth together, not area alone. A deep dam stratifies harder than a shallow one of the same size. Call us with both numbers before you order, because getting this wrong is expensive.\"}}, {\"@type\": \"Question\", \"name\": \"Three or four diffuser sets?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It depends on the shape of the water as much as the size. A long narrow dam wants stations spread along its length. A rounder one may be well covered by three. Send us the dimensions and we will lay it out with you.\"}}, {\"@type\": \"Question\", \"name\": \"What is a double diffuser?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Two diffuser plates on one stainless steel base, so each station puts more air into the water. That creates a stronger upwelling column, which is what you need to lift cold water in a deep dam.\"}}, {\"@type\": \"Question\", \"name\": \"Is it safe for stock and fish?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, and it usually improves both conditions. Aerated water holds more dissolved oxygen, which fish need. Stock water that is turning over does not develop the anaerobic smell that puts animals off drinking.\"}}, {\"@type\": \"Question\", \"name\": \"How far can the airline run?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Extension kits are available in 50m and 100m if power is a long way from the water. Running a single line to the bank and putting the manifold there also lets you balance the diffusers while watching them.\"}}, {\"@type\": \"Question\", \"name\": \"How loud is the compressor?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A rocking piston compressor makes a steady mechanical hum. The cabinet versions damp it considerably. Site it away from the house if you have the choice.\"}}, {\"@type\": \"Question\", \"name\": \"What servicing does it need?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A rebuild kit every 18 to 24 months keeps a rocking piston compressor at full output. They are inexpensive and we stock them. Skipping them is how compressors die early.\"}}, {\"@type\": \"Question\", \"name\": \"Does it run continuously?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Generally yes, though many owners run them on a timer through winter when biological demand is lower. Continuous running through summer is where the benefit is.\"}}]}\n\u003c\/script\u003e\n\n\u003ch3\u003eCompare with similar\u003c\/h3\u003e\n\u003cdiv class=\"ma-compare\"\u003e\n\u003cdiv class=\"ma-compare-card ma-compare-current\"\u003e\n\u003cp class=\"ma-compare-name\"\u003eAquascape ASA Dam \u0026amp; Lake Aerator, 3\/4 hp\u003c\/p\u003e\n\u003cp class=\"ma-compare-diff\"\u003eThe larger mains system, up to four double diffusers on one compressor.\u003c\/p\u003e\n\u003cp class=\"ma-compare-for\"\u003eBest for large dams and small lakes where one diffuser will not cover it\u003c\/p\u003e\n\u003cp class=\"ma-compare-price\"\u003eFrom $1,799\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ma-compare-card\"\u003e\n\u003cp class=\"ma-compare-name\"\u003e\u003ca href=\"\/products\/aquascape-asa-dam-aerator-1-4-hp\"\u003eAquascape ASA Dam Aerator, 1\/4 hp\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"ma-compare-diff\"\u003eThe smaller mains system, one or two diffusers, with or without a cabinet.\u003c\/p\u003e\n\u003cp class=\"ma-compare-for\"\u003eBest for a farm dam or a large ornamental pond that goes green in summer\u003c\/p\u003e\n\u003cp class=\"ma-compare-price\"\u003eFrom $1,199\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ma-compare-card\"\u003e\n\u003cp class=\"ma-compare-name\"\u003e\u003ca href=\"\/products\/aquascape-asa-solar-dam-aerator-1-2-hp\"\u003eAquascape ASA Solar Dam Aerator, 1\/2 hp\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"ma-compare-diff\"\u003eA 24V solar system for dams with no mains power anywhere near them.\u003c\/p\u003e\n\u003cp class=\"ma-compare-for\"\u003eBest for remote dams, which is most of them\u003c\/p\u003e\n\u003cp class=\"ma-compare-price\"\u003eFrom $2,799\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ma-cta-panel\"\u003e\n\u003ch3\u003eGet the ASA 3\/4 hp Dam Aerator right first time\u003c\/h3\u003e\n\u003cp\u003eYour price is beaten against any genuine like-for-like offer. We can organise a certified builder, work with your own landscaper, or set you up to do it yourself.\u003c\/p\u003e\n\u003ca href=\"tel:1300515620\" class=\"ma-cta-btn\"\u003eSpeak to the team\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/0856\/9790\/files\/ma-pdp-myacre_a9ff4e59-917f-40a7-832b-e9a525b10b31.css?v=1788480078\"\u003e\n\u003c\/div\u003e","brand":"Aquascape","offers":[{"title":"Compressor and 4-way manifold in cabinet","offer_id":48845659046078,"sku":"HC550A-CAB","price":1979.0,"currency_code":"AUD","in_stock":true},{"title":"4-outlet kit, 3 double diffusers","offer_id":48845659078846,"sku":"HC550A-3Set","price":2969.0,"currency_code":"AUD","in_stock":true},{"title":"4-outlet kit, 4 double diffusers","offer_id":48845659111614,"sku":"HC550A-4Set","price":3574.0,"currency_code":"AUD","in_stock":true},{"title":"Cabinet kit, 3 double diffusers","offer_id":48845659144382,"sku":"HC550A-CAB-3Set","price":3959.0,"currency_code":"AUD","in_stock":true},{"title":"Cabinet kit, 4 double diffusers","offer_id":48845659177150,"sku":"HC550A-CAB-4Set","price":4509.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/0856\/9790\/files\/unnamed-_5_1056x1056_8a278314-5424-4812-9f83-8eb3df7ff411.webp?v=1788655549","url":"https:\/\/myacre.com.au\/products\/aquascape-asa-dam-lake-aerator-3-4-hp","provider":"My Acre","version":"1.0","type":"link"}