My Pool Sand Filter Has Low Pressure..Low Psi & Multiport Valve Is Leaking..
by Sherry
New Question 2 I have a Hayward S166 Sand filter that has no PSI's in any setting except recirculate There is water leaking from the backwash valve and I am getting a ton of sand in the pool. I have replaced the liner, the multi valve top piece, O-rings and none of which worked. I have check the laterals (but not closely) and they all looked fine. My normal pool company has no idea why I have the problems I have and the season hasn't even begun yet. Help! Thanks for the question Sherry I know you want to get your pool up and running so I'll attempt to be as helpful as I can. First I would check the PSI gauge. It might be bad. Sometimes just one piece of sand can clog it up. I've had that happen to the sand filters at the YMCA pool several times. Concerning your leak in the multiport valve, there are a few O-rings and washers that you can check. If you talk to your pool guy, he should know what they are. These are from top to bottom. Multiport washer. This goes underneath the handle. Dial valve O-ring. This goes under the multiport valve cover. Valve washers. O-ring for the cover. This sits on the valve body assembly and the multiport valve and gasket assembly. The tank O-ring/Flange valve. Be sure you tighten the bolts cross-way. If you just go around the valve cover won't be flat and seat correctly. Laterals don't have to be broken to not work. They can become impacted with sand. If this happens the water will have no place to go but out. Water will always find the path of least resistance. If you check the laterals and they're not broken, chances are they might be clogged up. Be careful to not bang them on the ground. This will cause them to break. You can unscrew them and gently dig out the sand with a stick, then rinse them with a hose to loosen up any left over sand. Check the sand for channeling. This is when the sand becomes clogged with oil and debris. Feel around the inside sides of the filter for holes, pits, etc...If there are any, you have channeling. Email back and I can give you a good way to degrease the sand filter. Be sure you have the correct amount of sand in the filter. You can check with the filter manufacturer for the correct number of pounds you need. Also check what is called "freeboard". This is the measurement in inches from the top of the sand to the top of the filter. The sand filter manufacturer should know this as well. When you put new sand in there's going to be settling and a loss of sand through the returns. You may need to top it off after this happens, but it's very easy when you know the freeboard. Hope this helps and let me know how it turns out for you. Have a fun and safe swimming season. Robert New Question: Swimming Pool Sand Filter Leaks From Side Glass By: Arif From: Toronto, Ontario, Canada Date: May 14, 2011 I have three sand filters for my pool. One filter is leaking from the side glass and also gauge does not work. Answer: By: Robert Date: May 14, 2011 Thanks for the question Arif I have answered similar questions about this very problem right here: No Water Flow Through Glass Sight Gauge On My Filter System High Pressure Problem On A Swimming Pool Sand Filter My Pool Sand Filter Has Low Pressure..Low Psi & Multiport Valve Is Leaking.. If none of the above posts answers your question, please feel free to email back. Have a fun and safe swimming season. Robert New Question: Sand Filter Leaks From The Backwash Setting By: Debora From: Ohio Date: June 13, 2011 Our Hayward sand filter seems to leak out the backwash setting no matter what setting we have it on. Answer: By: Robert Date: June 13, 2011 Thanks for the question Debora I have answered very similar questions in these posts: My Pool Sand Filter Has Low Pressure..Low Psi & Multiport Valve Is Leaking.. Sand Filter Draining When In "Filter" Position Swimming Pool Sand Filter Leaking Out The Drain In Filter Position Closed Valve Setting Still Lets Water Through!...Pool Leaking.. Multiport Valve Filter Setting Issue..Water Coming Out Of The Backwash Hose.. There's lots of troubleshooting tips in the above links. I am going to merge your question with this question: "My Pool Sand Filter Has Low Pressure..Low Psi & Multiport Valve Is Leaking.." The link is above. You can find it on the pool Q&A page in the "Sand Filters" category: Swimming Pool Questions and Answers Hope the information above helps and have a fun and safe swimming season. Robert |
