After replacing gasket on filter vacumed pool

the filter element has a hole in it or a bad o-ring or a cracked manifold .. vote if'n I was of help.. jay the pool pump motor repair guy in longwood Florida

Its a very tough strain of black alhae. Shocking the pool with liguid chlorine will do the trick. First lower the ph level by adding muriatic acid(either pool store or local hardware store carries it). This lowers the ph level quickly. Pour it around the edge of the pool. Wait an hour than add the liquid chlorine. Let circulate for 24 hrs than vacuum to waste. The chlorine is more potent when the ph level is lower, thus the use of the acid

Always vacume on waste when you have algea

red valve handles align with flow of water long ways the tail in direction of pipe valves open to open pool generally all Valves open Main drain (floor of pool). Skimmer square hole somewhere on side edge of pool... There could be a third Valve for a seperate Vacuming port (like mine) it can be either its below water line .. On the Round Sand filter theres a Multi port Valve I usually start the Filter in RECIRC mode .. While I net and gather debris then I add floculant leave on recirc two hours . Then Shut ALL down for 12 Hrs while all the algae and debris sinks to bottom . Water will be reasonably clear.. Make sure pools Extra full , And Vacum all on bottom on waste setting

Usually sand blowing back into the pool is either cracked laterals, a cracked hub assembly (what the laterals screw into) or a bad spider gasket is wrong with pool filters. If you are certain that the laterals and hub are not cracked then I would try replacing the spider gasket.

This could be caused by several things. . After back flushing,did you rinse? Turned pump off, moved selector to rinse, and allowed to run until clear water was observed in the sight glass? If you continue to see the plume of particles, and it never stops, then you probably do have a problem. Your multiport valve gasket could be leaking by. Be sure you keep handle down when moving valve, and the gasket will last longer. You may have a broken, lateral (little fingers at bottom of the filter return piping. This would usually allow sand to flush out of the filter and it would be all the time. The "O" ring where the multiport valve seals to the down pipe could be leaking, letting the dirty incoming water mix with clean outgoing. Have you "cleaned" your filter lately? This is where you add a chemical to flush materials from top of sand pack? You can download a manual with troubleshooting instructions from www.haywardnet.com Enter your exact model number

you will need to do a few things.
Start by shocking the pool and then in 12 hours or so you will need to brush the sides and bottom
Now wait a few hours for the pool to settle and vacum
now clean out your cartridge and start filtering without the generator.
Now add in some liquid non foaming algecide
Now a day later repeat the brushing then vacum again clean filter and reapeat till your pool clears
Remeber to add a good stabilizer so that the chlorine that is generated holds longer and get test strips that read #'s to test salt you want to have the salt as close to 3000ppm as possible
Once pool is clear continue to use the non foaming algecide every week

shock the pool with as much as 2 gallons of liquid chlorine
Wait 12 hours and begin the hard part
With a pool brush work your way around the walls and floor
let settle for an hour or so and vacum
check chlorine if it went low do procces over
if it hasn't dropped leave that step out
in between vacuming clean out you cartridge filter as much as 3 times a day till you clear up

once clear start using a stabilizer to keep the chlorine level at it's optimal and use a non foaming algecide

Both chemicals are applied for your gallons of water Just follow the directions
The stabilizer works best if you put it in a nylon and float it off the ladder.
Every few hours you can sqeeze it till it all disolves

I would also suggest to clean the filter cartridge ever day especially in the hottest months

I am not impressed at all with these salt water chlorinators.Shock the water and keep the filter running next day add a powdered chlorine.filter still running. check the balance with test strip in about four hours.If chlorine level is good start vacuming the algee off the bottom of the pool. Now throw away the salt generator and stay with the chlorine packs every week to two weeks continue to monitor with test strips

try using a clarifier that you add into the skimmer such as Clearex 500.
The flocculent only makes particles drop to the pool floor, a liquid clarifier actually coates the sand and will filter smaller particles. Also, check the o-rings on the backwash valve. If the o-ring(s) are damaged it may be letting some water bypass the filter.