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Here is the typical Multiport valve on most Sand Filters. This is another thing that could cause problems with the sand filter and effect filtration. Here I show you how to take the multiport valve top off and check the Spider Gasket or Spoke. If it is damaged or coming unglued it will cause dirt to leak back into the pool or out the backwash valve.

Another telltale sign that the Spider Gasket is bad is water leaking out of the backwash pipe when the filter is running. Basically to change the Spider Gasket you will need to scrape it out with a screwdriver - make sure you get all the pieces out and don't gouge the plastic it sits in. Use one of the two adhesives I list in the video to secure the Spider Gasket back on the Multiport valve and don't tur nthe handle or turn the pol on for 24 hours.

If you notice water leaking out of the top of the handle and it is very hard to turn -chances are the o-ring on the handle got jammed into the O-ring or the O-ring went bad and is torn. At that point it may be time for a new Multiport valve but some people have had success changing out the O-ring in the spring -it is not easy to do.

Related Videos:
Pool Sand Filter Tips, Tricks & Troubleshooting, Sand Filter Part 1: [ Ссылка ]
Sand Filter Multiport Valve Troubleshooting, Sand Filter Part 2: [ Ссылка ]
Air in Your Sand Filter, Sand Filter Part 3: [ Ссылка ]
Vacuuming Your Sand Filter in Waste Mode, Sand Filter Part 4: [ Ссылка ]
How To Use A Filter Cleaner in a Sand Filter, Sand Filter Part 5: [ Ссылка ]

Hayward Mutliport backwash valve troubleshooting: [ Ссылка ]
Backwashing a Sand Filter: [ Ссылка ]

For the "Sand Filter" Playlist on mt Channel: [ Ссылка ]

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