I have three Hayward Cycolac Ball Valves model SP-735.

 

I need new O-rings, not at the stems but at the union fitting, and of course I need them quickly.  Does anyone know the generic sizing info so I can buy them from Mc-Master?  Leslie's Pool Supply's ultra helpful teenage know nothing staff were unable to assist, no real surprise there, and the other local pool store was already closed when I went by.

 

Anyone?  The O-Ring in question is located at the arrow between #3 and #5 in the diagram below.  Thanks in advance!

 

PM Njbanshee he owns a pool company

No idea, but you could try some water proof caulking to stop the leak till you find the right O-ring.

Measure the cross sectional diameter of the o-ring then buy a larger o-ring with the same cross sectional diameter and cut it down with a razor and then just glue it with crazy glue. Pool o-rings are Buna-Nitrile (Bune-N) and glue perfectly with any solvent type cement.

 

If you have any questions PM me.

Just replace the valves. Its rare that anyone re packs a valve anymore. The parts if not a standard o-ring size will be difficult to obtain most likely. Are they threaded NPT or solvent welded (glued).

Those valves are a pain. Monarch Pool in Totowa usually has that stuff.

 

 

Sent from my iPhone using TT 2 Pro

Those valves are a pain. Monarch Pool in Totowa usually has that stuff.

 

 

Sent from my iPhone using TT 2 Pro

 

Thanks.  I'll try them.

Just replace the valves. Its rare that anyone re packs a valve anymore. The parts if not a standard o-ring size will be difficult to obtain most likely. Are they threaded NPT or solvent welded (glued).

 

Yeah, no.  The valves are anywhere from 50 to 80 a piece.  We're not talking about repacking a valve, just replacing the o-ring seal at the "union" part of the valve to prevent the pump from sucking air past the o-ring.  This is an easy maintenance item, not a 4 hour re-pack.

Yeah, no. The valves are anywhere from 50 to 80 a piece. We're not talking about repacking a valve, just replacing the o-ring seal at the "union" part of the valve to prevent the pump from sucking air past the o-ring. This is an easy maintenance item, not a 4 hour re-pack.

Cool.

 

Pelican in Morris Plains on Rt. 10 has a ton of parts in stock also. That's where I get most of my hot tub stuff if it cant be had from my local plumbing supply house. Give them a try if you strike out in Totowa.

Thanks. Local no name pool store on 23 had them. Oh and i was like Remixer and had my wife go and get the parts.

 

 

And they fit and don't suck (air) anymore.