White frothy bubbles pumping into pool.

Barrymore

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Joined
Apr 21, 2008
Messages
162
My new pool cleaner has not been performing well. I was informed that the problem is the filter sand.
I have just spent hours cleaning the filter. I removed the filter lid and with a hose pipe running strongly
in the filter I let the mud and much overflow out the filter until the sand was relatively clear.
I replaced the lid and set to filter. Problem now is that a strong, noisy flow of bubbles are pumping back into the pool.
This has been going on for a few hours now. Would this be a normal way of air being removed from the filter and if so, why so much and why so long? Any help would be appreciated.
 

AstroTurf

Lucky Shot
Joined
May 13, 2010
Messages
27,545
My new pool cleaner has not been performing well. I was informed that the problem is the filter sand.
I have just spent hours cleaning the filter. I removed the filter lid and with a hose pipe running strongly
in the filter I let the mud and much overflow out the filter until the sand was relatively clear.
I replaced the lid and set to filter. Problem now is that a strong, noisy flow of bubbles are pumping back into the pool.
This has been going on for a few hours now. Would this be a normal way of air being removed from the filter and if so, why so much and why so long? Any help would be appreciated.
Sounds like a leak.
 

Baxteen

Honorary Master
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Feb 26, 2013
Messages
17,268
its either a leak or you have a lot of air trapped in the sand filter.
try doing a backwash to see if that clears out the bubbles
 

Ianf1

Expert Member
Joined
Aug 5, 2007
Messages
1,654
Also turn your pool cleaner pipes, there are leaks at the joints sometimes and this then gives a water seal.
 

upup

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Jun 1, 2009
Messages
6,342
Did you put vaseline on that oring on the weir before the pump.
Before the pump it sucks, after the pump it blows.

Look at the water level in that weir at the pump. The fault can also be on that pipe from the pool, or at the pump.
 

Kosmik

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Sep 21, 2007
Messages
19,156
Check you sealed your pump properly or the sand filter. Either a leak or low water.

If you want to eliminate the filter, try a backwash which should flood your filter with water. Then set to normal, shouldn't be air bubbles in the system then save for a leak or bad seal.
 

Nobody4

Active Member
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Nov 15, 2015
Messages
47
You will have to replace the sand. Crap job though, you can take a old 2 liter coke bottle can cut it it have to scoop out the old sand. Also when you are done make sure you have sealed the filter properly because it does sound like it is sucking air thru the Sand filet.
 

Grant

Honorary Master
Joined
Mar 27, 2007
Messages
46,404
quick test:
assuming the water level of the pool is correct and no leaks in kreepy hose

disconnect kreepy (at the weir)
use "bypass" on your pump to bypass the sand filter
no bubbles = air leak at filter
bubbles = leak at pump
 

creeper

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Nov 18, 2010
Messages
4,936
1. Your pool has rabies
2. Someone washed their clothes in your pool
3. Leak

Edit. So oober beat me
 

qwertydudeza

Senior Member
Joined
Mar 20, 2012
Messages
514
You will have to replace the sand. Crap job though, you can take a old 2 liter coke bottle can cut it it have to scoop out the old sand. Also when you are done make sure you have sealed the filter properly because it does sound like it is sucking air thru the Sand filet.
Old wet and dry vacuum cleaner works well too.
 

MickeyD

RIP
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Oct 4, 2010
Messages
139,117
quick test:
assuming the water level of the pool is correct and no leaks in kreepy hose

disconnect kreepy (at the weir)
use "bypass" on your pump to bypass the sand filter
no bubbles = air leak at filter
bubbles = leak at pump
^this
 

ISP cash cow

Executive Member
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Feb 10, 2011
Messages
5,318
Old wet and dry vacuum cleaner works well too.
You need a seriously strong one if you want to use a wet/dry vacuum cleaner.

tried it once and it was not working all that well (Would suck up the smaller sand particles but not the bigger ones). I was eventually back on my haunches with a scoop, scooping the sand out as it was just faster and more efficient.


As mentioned above bypass your filter and see if you still get the bubbles or not.
If you get bubbles then pump or piping is leaking,
if not then switch the filter back to filter and run. If you get bubbles your problem is with your filter.
could be you have not sealed your filter lid back on properly.

Also the way you cleaned your filter is not that effective it would have been better if you had just got some filter cleaner (or some pool acid - be careful with it though) pour it into the filter sand and let it sit for 12 hours (or what is on the bottle) and then backwash it out well.

first prize would be to replace the sand
 

Barrymore

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Joined
Apr 21, 2008
Messages
162
Day two. Noisy bubbles still pumping into pool. The pool Co. that last replaced the sand must have misplaced one of the brass screws
so they used a mild steel bolt instead. Needless to say, it rusted, and on removing the lid the head of this bolt broke off so when backwashing water shoots out from this spot. On filter there is no leak from the lid.
What I found strange is that set on "bypass" the problem is still there!!!
 

Grant

Honorary Master
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Mar 27, 2007
Messages
46,404
What I found strange is that set on "bypass" the problem is still there!!!
using bypass is just a quick test - by no means definitive.
if the pump is on bypass, the entire sand filter is being bypassed - you can also see this by looking at the pipe configuration between pump & filter.

if you still have bubbles when on bypass, then the problem could be probably pump related.
check the leaf trap next to the pump - in there air in it ?

if there is no air in there, you may have a leak in a pipe
 

Barrymore

Well-Known Member
Joined
Apr 21, 2008
Messages
162
using bypass is just a quick test - by no means definitive.
if the pump is on bypass, the entire sand filter is being bypassed - you can also see this by looking at the pipe configuration between pump & filter.

if you still have bubbles when on bypass, then the problem could be probably pump related.
check the leaf trap next to the pump - in there air in it ?

if there is no air in there, you may have a leak in a pipe
Prior to removing the filter lid and flushing out the dirt in the filter, the pool was crystal clear. I cannot accept that the problem
could be related to anything but the sand filter. I have tried drilling into the broken bolt then fitted a stud which I fixed using pratley putty but this did not work. All the pool specialists I have contacted are too busy to assist.
 
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