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-   -   How to find out why your pool pump is not fully priming (http://www.diychatroom.com/f98/how-find-out-why-your-pool-pump-not-fully-priming-55495/)

tripflex 10-19-2009 09:33 AM

How to find out why your pool pump is not fully priming
 
Okay guys, so after all my adventures with my new house and pool, i figured i would share some great information that i figured out over trial and error.

Basically after replacing my pool pump with a brand new $400 one, i still want not getting my pool pump to fully prime!

BTW just in case anybody doesn't know, when your pool pump is running, if you look down into the basket on the pump you should just see water, you shouldn't see swirls or the water flowing in from the pipe, it should look like the basket area is just full of water

The reason i post that above is because when i figure bought my house, i didn't know that! So i thought my pump was running correctly until i had a friend come over that works for a pool company.

Anyways, after he came over i still could not get my pump to fully "prime" or work correctly...somehow there was air getting into my pump.

Turns out, the way i figured it out was such a simple solutions i wish i would have tried it earlier. (i figured this out on accident!)

I was working on cutting out my chlorinator to put in a new valve and i was holding my hose with it running away from my body. I look over to the right and the hose just happens to be spraying where my intake pipe is, i look at the pump and it is working perfectly!


I was amazed! So basically if you cannot get it to fully prime/work, take a hose, spray it around the intake pipe, pump lid, or any other parts or valves before the pump, if the pump starts working correctly you know that's where the air is getting in!

Just thought i would share that because of how amazed i was when i figured it out, and i was working on another problem when i figured out the pump one!

DIYMan. 04-04-2010 12:28 AM

I am going to try this, I have been having issues with my hot tub pump not priming.


Jim F 07-28-2010 08:20 PM

I get air bubbles in that basket when I run my vacuum and the pump pressure reads zero. I finally figured out that the vacuum makes it work too hard to be efficient. I must also backwash the system after removing the vacuum or else I get all that fine sedement back in through the pool outlet.

gotboost 08-03-2010 05:58 PM

I'am having the same problem,can see the water swirl around in the basket before it enter's the pump,and the return is alot weaker then it used to be,the vacuum is also weak,I'am going to try the water hose tomorrow around the lid,

Scuba_Dave 08-03-2010 06:09 PM

I installed an oversized pump
So I get the swirls when the water level gets low
In many cases you need to add water to the pool
My pump will pull water in so fast it can drain the basket if the water level is too low
Eventually I need to add a 2nd skimmer
.....I want one actually on the bottom of the pool

vsheetz 03-14-2011 03:29 AM

A common air leak is at the rubber O-ring to the lid of the basket at the pump. A coating of vaseline is often needed to help it seal.

tuzhvouv 07-13-2011 07:31 PM

Vaseline can be a poor choice unless you know it is compatible with the o-ring material. I used waterproof silicone grease (available in plumbing supplies) on the o-ring for our pump and we got 10-15 of years of use from it, sitting out in the weather all year long.


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