Hayward SP-711 Multiport Valve Leaking

[cdognight]

Thank you, Poconos, for your time in responding to my problem.

I came across the same PDF last night, but was confused by the fact that there doesn't seem to be a cross-section specifically for the 711, and the parts list is a little confusing as well. There are parts at the bottom of the list specifically for the 711, but only for certain dates? I'm not sure when this valve was made.

I suppose the best thing to do right now is just to dive into the disassembly and see what things look like.

It might also help to mention that when I place the valve i the recirculate position, water begins flowing from the waste port. I wouldn't think it would do that.

I imagine I'll know this "spider gasket" when I see it. I came across links to several discussions about this gasket last night, and most of the debate seemed to be what adhesive to use/not use to mount it. It also seemed like it was mentioned when discussing things like water going to the wrong port, and not water bubbling out of the top of the valve. I probably will need both the o-ring and this spider gasket.

[Poconos]

Sounds like you know what to look for. That spider gasket is also called a wagon wheel gasket and it's failure symptom is indeed water going to unselected ports like you have observed.
Al

[cdognight]

Well, I removed the valve key cover and inspected the gaskets. In retrospect, the o-ring could only have caused leaking around the seam in the key cover, and not from under the handle itself, where I am experiencing it.

The spider gasket "appears" OK. It hasn't deteriorated, and doesn't appear especially deformed. I didn't want to remove it from its groove and inspect it because I have nothing to seal it back with handy.

This may all be a moot point as last night I submitted a service question on the Hayward website. A while ago I received a reply...

Parts for the 711 valve are not available. The valve
has been replaced by SP0714T

Regards,

Richard Burns
Technical Service
Hayward Pool Products
1 Hayward Industrial Drive
Clemmons N.C. 27012 (908) 355-7995

Soooo, looks like I'm getting a new valve after all.

[Poconos]

Thanks, nice to know if I ever have a problem. Next time I'm at the pool store I'll check on the spider gasket and grab one as a spare just in case. Mine is 1997 vintage. Can't really help further as I never took mine fully apart to see what you're referencing.
Good Luck,
Al