Possible cracked bulkhead fitting on Hayward 200 Sand Filter

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harclerode76

New member
Apr 29, 2024
4
Champion, OH
We started opening the pool this past weekend and I removed the bulkhead fittings on our Hayward 200 sand filter to clean around them and those openings. When I tightened the the bottom one (where the longer elbow of the variflow valve goes) on the last turn I heard a CRACK and the fitting "slipped" and got a little looser, one or two turns tightened it back up and stayed tight.
Once I turned the pool on, a small trickle of water started coming from that area.
So, did I crack my fitting or my bulkhead?
Thanks in advance!
 
harclerode76 said:
We started opening the pool this past weekend and I removed the bulkhead fittings on our Hayward 200 sand filter to clean around them and those openings. When I tightened the the bottom one (where the longer elbow of the variflow valve goes) on the last turn I heard a CRACK and the fitting "slipped" and got a little looser, one or two turns tightened it back up and stayed tight.
Once I turned the pool on, a small trickle of water started coming from that area.
So, did I crack my fitting or my bulkhead?
Thanks in advance!
Click to expand...
The bulkhead nut is the most fragile part and likely what cracked.
 
harclerode76 said:
That's what my thought is. The bulkhead itself seems very solid.
When I replace it, how tight should it be? Hand tight? As tight as it'll get? Somewhere in between?
Thanks!
Click to expand...
I don't think that the nut itself is replaceable on that MPV. It comes as part of the assembly, unfortunately. You may need to get an entirely new valve. Those thread are proprietary to Hayward, not a standard split-nut type repair.
 
1poolman1 said:
I don't think that the nut itself is replaceable on that MPV. It comes as part of the assembly, unfortunately. You may need to get an entirely new valve. Those thread are proprietary to Hayward, not a standard split-nut type repair.
Click to expand...
Ah, I see. It's not the valve that cracked, it's where the valve attaches to the filter. The fitting that screws into the filter that the valve then gets pushed in and screwed on.
I highlighted the pieces from the owner's manual.
 

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