Sand in my inground pool.....

[tommyt57]

Help a frustrated old man......

Sand getting into my pool.. Did the normal Google and Forum search.. No real results...

Have a Hayward S244T filter. Changed my sand this season and have been fighting sand getting back into my pool. I added 4, 25 pound bags of ZeoSand-50. Started getting sand in my pool right away. I did backwash to clean out the trash first.
Changed out my Lateral Assembly - same problem...
Installed a new Multi-Port Valve as my old one had a glued in spyder seal - same problem
Removed about 1/3 of the sand - same problem
New sand. so not too much backwash needed.

One thing I did notice is that the lateral pipe fits a little lose on the port valve. Wonder if sand is getting because of this?

I've tossed all the stuff that I know to do..... Any suggestions????

Thank you,

tom

 

[Texas Splash]

Welcome to TFP! If your repair efforts were all done correctly, it would appear you have addressed the usual suspect areas. The only other things I can think of are:
- Pump size too strong for filter.
- Poor quality sand, not #20 pool silica sand.

As for the center stand pipe for in the MPV, usually they are snug, but the sand is probably a few inches below it anyway.

How old is your system? This just started happening?

 

[tommyt57]

Thanks... Pool is about 14 years old. I'm thinking about dumping the sand that I have now and try a different one. As my filter says it needs 300 pounds of sand, I used 100 pounds of ZeoSand. So its WAY below the top. I'll go and get some #20 sand and kick it again. I'm getting good at changing it out!

I've had pools and hot tubs most of my life and have done 100% of the maintenance on both. This one is beating me up.

THANK YOU for taking the time to help... Much appreciated.

tom

 

[tommyt57]

UPDATE...... 7/7/2023. I'm getting fast at changing out my sand. Added #20 gauge sand, cleaned my pool and ran my filter for almost 2 days. NO SAND IN MY POOL!!!!!!!!

Yup.... though I knew it all..... Nope.

A big thank you to Texas Splash.

 

[Texas Splash]

 

[tommyt57]

OK.... A couple of day later... the sand was back.... Just like @ the beach. I ended up replacing the complete Multiport Valve. That seemed to fix my issue. I looked and my pool was install in 2007. I probably got my use on the old one. The new one also fix a little tighter on the 2 month old Lateral Assembly. I'm guessing that was the issue. Replacing just the Key Cover (with new Spyder gadget,) didn't fix the issue

Thanks again for the help.