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How To Get Air Out Of Sand Filter

I am getting air in my sand filter-where should I look first

  • Thread starter Bob_Funk
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Bob_Funk
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  • #one
Good forenoon everyone,

This is my commencement pool, I accept cleared it & accept been enjoying information technology due to this forum for a calendar month at present.

My pump is not on a timer & I would like to install one, the problem is that my sand filter is getting air in it & when I shut the pump off, the air pressure level is blowing all the water out of the return line, making the pump loose prime if I want to turn it back on.

I am not loosing any h2o, so I don't call up I have a h2o leak, where should I start looking for the air leak?

Thanks

Bob

JohnT
Apr 4, 2007
10,081
SW Indiana
Pool Size
21000
Surface
Vinyl
Chlorine
Liquid Chlorine
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  • #2
The pump strainer basket lid being loose or needing a new O-band or needing lubed is the first matter to cheque. And so the bleed plugs in the pump also as their O-rings. Then check that the pool water level is at or higher up the marker on the skimmer plate or nearly halfway, and that the skimmer weir isn't sticking.
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  • #3
How-do-you-do Bob :cheers:

John gave you the primary sources for air in the system :goodjob: Check those out earlier nosotros start looking into the more than exotic places pools leak :)

I'm thinking your filter system is above pool level and the water might be draining from the filter when you shut it off - the multi could exist responsible for this... I'm thinking as I type but a cheque valve on the return might solve the problem, however, that would just be masking the air leak.

I'll only wait til you report back :oops:

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  • #4
I had a scissure in the pump pot lid that caused the same thing for me. When I replaced the lid, the air stopped entering the filter.
Bob_Funk
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  • #5
Howdy & thanks for the ideas,

the skimmer lid o-ring is good & lubed upwards

the water level is good, & if a weir is the door that keeps stuff from floating out of the skimmer & back into the pool and then it is also skillful

I volition check the drain plugs in the pump tomorrow, I don't know where they are located, but I have the volume for the pump(thank god, foreclosure abode-the only thing left here from the previous owner was the pool equipment info) and will cheque that out

I don't think the lid has a crack but I volition check when I turn the pump off tonight

I will report back tomorrow

thanks

Bob

Bob_Funk
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  • #6
Hi again,

I checked the drain plugs, both are good.

My pool has 1 skimmer, 1 bleed in the deepest role & ane render

The deep end drain meets at the skimmer & there is a valve to switch between skimmer but & skimmer & drain

If I take it on both skimmer & drain & cover the skimmer bleed then the pump is just pulling from the deep end I get a ton of air in the pump basket

I was originally just running the pump with the water going only thru the skimmer until I figured out that to pull from the deep end drain I needed to turn the valve in the skimmer & that is when I started having issues with the air in the filter.

I could just run the skimmer return only but I am worried that I volition non get skilful circulation in the deep end

any ideas?

Thank you

Bob

duraleigh
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  • #seven
Sounds like that valve may be suspect. Audit it closely for an air leak.
JohnT
Apr 4, 2007
x,081
SW Indiana
Pool Size
21000
Surface
Vinyl
Chlorine
Liquid Chlorine
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  • #viii
The deep end drain meets at the skimmer & there is a valve to switch betwixt skimmer only & skimmer & drain

If I have it on both skimmer & bleed & encompass the skimmer drain so the pump is just pulling from the deep stop I get a ton of air in the pump basket


Tin you mail a picture Bob? It could be that the bleed lone can't supply enough water to the pump.
Bob_Funk
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  • #9
Thanks for the replies,

I did a footling more than testing last night,

I backwashed the filter, pressure was up only 2psi, and I let the filter run 14hrs over night-skimmer & deep end, when I turned off the pump very slight dorsum launder from the filter, the pump did non loose prime number.

I remember the problem may exist too much sand in the filter, when I started working on this filter, I replaced the sand, I was nevertheless getting sand in the pool, then I had to take out all of the new sand.

I had all of the sand, old & new in a pile, I tried to fill the filter to the level it was, just information technology was just an estimation, my thought is if there is too much sand in the filter, stopping the h2o menstruation to the return instantly when I plough off the pump if the sand is muddied, when information technology is clean the water was withal able to continue flowing to the return instead of blowing back out the skimmer line.

I have attached a flick of the skimmer/deep return valve at the finish of the post

Am I off base here?

Should I take some sand out?

The pool is crystal articulate.

thanks

Jordan

1000676.jpg
Bob_Funk
duraleigh
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  • #xi
I'k not sure the sand level is related to losing prime. Virtually manufacturers have a marker or something in documentation to tell y'all how much sand. Sometimes y'all can find it on line. Curt of that, nearly sand filters seem to practise well near 2/three full of sand and the acme third empty.

Air in the system usually occurs on the suction side of the pump. Somewhere between your skimmer/main drain and your pump, air is getting in.

Bob_Funk
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  • #12
Air in the system usually occurs on the suction side of the pump. Somewhere between your skimmer/master drain and your pump, air is getting in.

Yous were right but I did not run across it right in front of my face

I besides accept a 2 person in ground hot tub connected to the system, it was empty & the brawl valves were closed but air was getting in.

As before long every bit I put enough water to embrace the return the air leak was gone.

I have an Former propane heater that I am going to remove along with the hot tub I am going to apply those lines for solar

Bob

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How To Get Air Out Of Sand Filter,

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