The rinse setting on my Hayward sand filter does not work,almost like it’s plugged up.Any ideas?

SOURCE: How to change sand in Hayward S-200 Sand filter

hayward S-180 filter takes 150lbs, S-210 takes 200lbs not familur with the S-200. To change sand you have to remove the vari flow valve on top. You can either unplumb the filter and roll it over on its side and try washing the sand out or try scooping it out upright. Whatever you do dont damage the laterals on the bottom of the filter. When refilling with sand you want to make sure all the laterals are undamaged and in the down position. I always fill the filter half full of water to keep the sand from damaging the laterals while re-filling the filter with sand. Make sure you use pool filter sand and not play sand!

SOURCE: multi-valves on hayward sand filter mixed up

Key Cover Assy needs new spider gasket. If it is a newer model the gasket is made into the key cover and it will have to be replaced

SOURCE: replaced sand now filter isnt working

if u used play sand, or any other type of sand thats NOT pool filter sand, that could be the problem. also if there is too much sand or too little sand that could also cause this.

SOURCE: How do I chabge the sand in my s-200 Hayward sand

take top off open bottom drain use a small wet vac hose to get as much out through top out be careful not to damage filter bars wash the rest out through bottom drain with a garden hose

SOURCE: The threads are stripped on the drain plug of my

If it is a plug, just make sure that it has the o-ring. SPX1022CZ2 is part number for the hayward o-ring on a PLUG.
If its a cap there is a gasket that seals it on the inside S180G is the part number.
If you have a cap or plug and the treads are stripped you options are limited.
You can try teflon tape, three or four wraps counter clockwise mighthelp, but if not silicon sealant is you last option before tank replacement.
Permatex blue RTV (found in PEP boys, Auto Zone) works well in these applications.
Apply the Permatex inside the cap or on the threads of the plug liberally. Allow the Permatex to get tacky and then thread on the cap or plug. Apply additional Permatex around the cap/plug.
Wait 24hrs untill fully dry. It should be sealed. After this point consider the cap non-existent, unless you are prepared to repeat the process.