Question about Waterway Pool & Spa

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When I installed a new waterway pump, model SD-10-1N11CB it is definitely sucking air, no leaks or obstuctions. When first started pump it actually collapsed the suction hose (like it was in a vacuum)

Waterway Model SD-10-1N11CB, Part No. PH11008D-6

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  • Waterway Master
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Change suction hose or put hose clamps where it collapsted

Posted on May 01, 2016

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SOURCE: Replacement pump for spa (Waterway Executive Euro 2 speed 2 hp

V1 would be low V2 would be high U1 would be line and then ground. A picture would be helpful to be sure.

Posted on Jul 05, 2009

  • 8404 Answers

SOURCE: Model #SD-20-2N11CC WATERWAY PUMP (2HP)

Rule of thumb for a 2 HP pump using a 2 inch pipe is between 60 and 80 gallons per minute. Factors affecting flow rate is the distance between the pump and the pool, how many bends and turns and of course the condition of the filter. If you need to meet a specific turn-over rate, use the lower number to determine in the event you sould be called on the carpet.

Low speed? I am sorry. I don't know the rule of thumb on this.

You could install a flow meter, available at your professional pool supply. They are easy to install and not a lot of money. Follow the installation instructions as best as you can.

Incidently, comercially speaking, the 'turn over rate' should be around 8 hours for a public pool. Your jurisdiction may have other standards. Commercial pools should run 24 hours a day at that rate during the open season. Turn over rate means all the gallons of the pool should go through the filter in 8 hours, or all the gallons should go through the filter three times per day. Example: 16000 gallons of water in the pool, your filter and pump should be pumping 2000 gallons per hour. Studies show that it actually takes up to 5 days to get every actual 'chunk' of water to go through the filter, so, many of the 'chunks' of water go through the filter multiple times per hour. BTW, I use the word "chunks" in an effort to better paint a mental picture of what is happening. I am not suggesting your water has "chunks" in it.

Thanks for your question @ FixYa.com

Posted on Jul 08, 2011

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I've never seen a reassembly diagram for this particular pump but I'm guessing that you've installed the mechanical seal incorrectly.

Where is it leaking from exactly?

Kind Regards,
Ian Kime.

http://hottub.synthasite.com

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