Multivalve getting impossible to turn.

Moneypits

Well-known member
Mar 26, 2017
78
Greenville SC
#1
So I bought my home last year and it had an in ground pool with a low of newer equipment but the multi valve to go from Filter/Backwash/Rinse/etc has become progressively more difficult to move. It is now to the point that it takes both arms and putting body weight into moving this thing. There is a lot of discoloration(algae or dirt I'm assuming) where the handle turns that piece but I'm not sure how I would go about cleaning that or if this would help? Would some form of silicon or lubricant help?
 

Texas Splash

Mod Squad
TFP Expert
LifeTime Supporter
#2
Let's hope it's something you can fix relatively easy. Consider removing the top of the multiport valve. Careful to note the direction of the handle to put it back the same way and keep track of the retaining screws. Flush the area real well. Sometimes sand or junk gets wedged in there. At the same time, inspect the spider gasket for wear or to see if it got pinched/rolled. You may also see a spring under the handle that can get dirty/rusty and may need some lube. Depending on your model MPV, you may see another area or two that could use some pool silicone. Hopefully it's something that simple.
 

tim5055

Mod Squad
TFP Expert
LifeTime Supporter
May 11, 2014
10,096
Franklin, NC
#5
I agree with Jim, if you are going ot open it - rebuild.

Once fixed I am a proponent of always turning the valve only in one direction to keep from messing up the spider gasket....
 
OP
OP
M

Moneypits

Well-known member
Mar 26, 2017
78
Greenville SC
#6
Hey guys sorry to bump an old thread but its apparent I have a bad spider gaskep since my backwash is leaking through anytime the pump is on. So this promps the question- is this something I can with the system 'under pressure'? As in as long as the pump is off, can I leave the multiport on the sand filter or does the assembly need to be removed?
 

tim5055

Mod Squad
TFP Expert
LifeTime Supporter
May 11, 2014
10,096
Franklin, NC
#7
It does not ned to be removed form the filter most times, but can't be done "under pressure". The multiport valve is what directs the water flow. How it needs ot be doen will depend on your setup. In my case, teh filter is below the pool, so I need to valve off all lines before I fool around with the valve. If the filter is above the pool water level you may not need to do that.
 
Aug 19, 2018
39
Modesto, CA
#13
Are you positive you are able to remove the spider gasket? Most of the time they get installed with glue, making it nearly impossible to remove. I have a Hayward book here at home. I'll reply if I find the number for you.

Edit. Looks like it could be a SPX0710 model. Look for a SPX0710XD
 
Last edited:

Gene Clean

In The Industry
Aug 19, 2018
39
Modesto, CA
#15
Excellent! I replace those quite often. Instead of glue I use a light silicone sealant under the gasket so that it wont pop up when turning the valve. It works like glue however if you need to take it out it will peel off easily.