Leak in the sand filter manifold

Pool pumps, pool filters and the plumbing of
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Joeaksa
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My Pool: 13000 gallon Dolphin installed approx 25 years ago. Hayward pump and sand filter with a Barracuda suction filter.

Leak in the sand filter manifold

Postby Joeaksa » Tue 30 Apr, 2024 18:34

First post, appreciate any help.

I have an approx 25 year old Dolphin in-ground pool thats approx 13,000 gallons. As far as I know the equipment is all Hayward and except for the motor & pump is the same age as the pool. The filter is a sand version and made of gray plastic or ABS.

The "backwash valve" was getting difficult to actuate and I want to the pool store and got new "o" rings and that helped life a bunch but when I powered the system back up again noticed pretty good drips coming out of the black "H" manifold that runs horizontal and attaches to the pool filter. Tried to tighten the large plastic nut holding it to the filter housing, but did no good and its still dripping a good amount of water when the pump is running.

The one leaking is the upper pipe going into the filter. I have not tried to unscrew the lower nut yet and assume that this is going to have to happen to get this manifold off so that hopefully this unit can be re-sealed.

Suggestions if you have ever seen this before? I am an aircraft mechanic so pretty handy with things but never done one of these!

Thanks!

Joe in Phoenix


Denniswiseman
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My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
Location: United Kingdom

Re: Leak in the sand filter manifold

Postby Denniswiseman » Wed 01 May, 2024 00:46

Post some images
Teapot1
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Joined: Thu 29 Apr, 2021 00:43
My Pool: 12000 gallons vinyl liner,

Re: Leak in the sand filter manifold

Postby Teapot1 » Wed 01 May, 2024 02:37

Ditto, can you cut some O rings from flat rubber/neoprene etc. Alot of these connections are flat face to face, some are O rings so you might need an O ring kit if you cant find the right one but we need photos as Dennis said.
I may not give you the answer you want to hear, but I will give an honest opinion of your situation as you decribe it.
Joeaksa
I'm new here
I'm new here
Posts: 6
Joined: Tue 30 Apr, 2024 18:13
My Pool: 13000 gallon Dolphin installed approx 25 years ago. Hayward pump and sand filter with a Barracuda suction filter.

Re: Leak in the sand filter manifold

Postby Joeaksa » Wed 01 May, 2024 18:25

Denniswiseman wrote:Post some images


Once I figure out how to do this will get some photos up! Thanks!

Lets try this: https://www.facebook.com/photo/?fbid=10159548196576671&set=pcb.10159548197146671

https://www.facebook.com/photo?fbid=10159548196746671&set=pcb.10159548197146671
Joeaksa
I'm new here
I'm new here
Posts: 6
Joined: Tue 30 Apr, 2024 18:13
My Pool: 13000 gallon Dolphin installed approx 25 years ago. Hayward pump and sand filter with a Barracuda suction filter.

Re: Leak in the sand filter manifold

Postby Joeaksa » Wed 01 May, 2024 18:29

Teapot1 wrote:Ditto, can you cut some O rings from flat rubber/neoprene etc. Alot of these connections are flat face to face, some are O rings so you might need an O ring kit if you cant find the right one but we need photos as Dennis said.


Thanks and from what I am hearing from other sources the piping from the "Backflush valve manifold" goes into a fitting thats on the side of the sand filter, and that there is an "o" ring inside that fitting. Evidently its necessary to empty the sand out of the filter, then slide the filter sideways to expose the piping with the "o" ring.

Sounds like someone with a far younger back than mine, am a newly retired aircraft mechanic who bent over far too much when I was a pup.
Teapot1
Pool Industry Leader
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Posts: 1248
Joined: Thu 29 Apr, 2021 00:43
My Pool: 12000 gallons vinyl liner,

Re: Leak in the sand filter manifold

Postby Teapot1 » Thu 02 May, 2024 01:15

I think you are right Joe, sadly a typical setup all glued connections so you can't remove the light weight stuff to carry out a service. So much easier with demountable unions.
I may not give you the answer you want to hear, but I will give an honest opinion of your situation as you decribe it.
Denniswiseman
Pool Industry Leader
Pool Industry Leader
Posts: 2602
Joined: Tue 06 Sep, 2011 05:48
My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
Location: United Kingdom

Re: Leak in the sand filter manifold

Postby Denniswiseman » Thu 02 May, 2024 01:49

Those links didn't work

Where you write a post
Click Full Editor & Preview
Click Attachments near the bottom
Click Add Files or you can drag and drop
Joeaksa
I'm new here
I'm new here
Posts: 6
Joined: Tue 30 Apr, 2024 18:13
My Pool: 13000 gallon Dolphin installed approx 25 years ago. Hayward pump and sand filter with a Barracuda suction filter.

Re: Leak in the sand filter manifold

Postby Joeaksa » Thu 02 May, 2024 09:15

Denniswiseman wrote:Those links didn't work

Where you write a post
Click Full Editor & Preview
Click Attachments near the bottom
Click Add Files or you can drag and drop


Dennis, thanks very much!! I used to run a BB using PHPBB but its been years so this helps.
Attachments
Pump filter assy small.jpg
This is my 25 year old system.
Pump filter assy small.jpg (207 KiB) Viewed 123 times
Pool pump connection small.jpg
This is the leaking connection.
Joeaksa
I'm new here
I'm new here
Posts: 6
Joined: Tue 30 Apr, 2024 18:13
My Pool: 13000 gallon Dolphin installed approx 25 years ago. Hayward pump and sand filter with a Barracuda suction filter.

Re: Leak in the sand filter manifold

Postby Joeaksa » Thu 02 May, 2024 09:16

Teapot1 wrote:I think you are right Joe, sadly a typical setup all glued connections so you can't remove the light weight stuff to carry out a service. So much easier with demountable unions.


Thanks much.... or a cutting torch! :)
Teapot1
Pool Industry Leader
Pool Industry Leader
Posts: 1248
Joined: Thu 29 Apr, 2021 00:43
My Pool: 12000 gallons vinyl liner,

Re: Leak in the sand filter manifold

Postby Teapot1 » Thu 02 May, 2024 17:50

If you feel up to it, cut the 3 pipes and install demountable unions.
I may not give you the answer you want to hear, but I will give an honest opinion of your situation as you decribe it.
Joeaksa
I'm new here
I'm new here
Posts: 6
Joined: Tue 30 Apr, 2024 18:13
My Pool: 13000 gallon Dolphin installed approx 25 years ago. Hayward pump and sand filter with a Barracuda suction filter.

Re: Leak in the sand filter manifold

Postby Joeaksa » Thu 02 May, 2024 18:05

Teapot1 wrote:If you feel up to it, cut the 3 pipes and install demountable unions.


Thanks and a friend of mine has a "redneck fix" that he has suggested trying first and if that does not work then we will probably go that route. It cannot be any worse than being upside down in the back of an airplane with a rivet gun! Thanks!

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