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Have you cleaned the grids/fingers lately? They, the things that get coated with DE, need to be taken out and cleaned once a year. If you haven't, they likely have a coating on them, in addition to what you coated them with, causing the high pressure. You have to take them out and wash them. Different methods are hosing them and soaking in dishwashing liquid; putting them in automatic dishwasher a couple times (no heat dry!); soaking in muratic acid. See: http://www.haywardnet.com/owners/troubleshooting/filters.html#clean You might just need to buy a new pressure gauge. You can find parts online or try the hardware store or the pool supply place. I had the exact same problem with my filter. I use bacquacil Ultra and I would backwash the filter and a few hours later the pressure returned to the high level that it was prior to backwashing it. After taking my filter apart, I discovered a pink color on the filter grid. Through research I learned that the pink color was caused by "pink slime" and water mold which were clogging the filter. My water was very clear and I was unaware that I had these issues until I took the filter apart and learned that I had to treat the water with a chemical to remove the "pink slime" and water mold.. My hayward DE 4800 Filter has always read between 24 and 28PSI. The grids are clean in and out. I have been told it really depends on the Plumbing. I have an oil fired heater as well as many elbows and 5 returns. I also run a 1 1/2 HP pump with it. I have been told to downsize the impeller to decrease the pressure and I have been told to leave it alone and it is fine. The pressure guage that comes with the filter is a cheap one and not the most accurate. Anyway, this is the way it has been since I got the pool with the house 8 years ago. Every filter has a different pressure due to the size of pipe,pump and distance to run. D.e. filters after backwashing need to have D.E. added back to them.Maybe your guage is broke does it go to 0 when your pump is off.

Spiders can also get into the mech. and stop its proper function. As in the above Hayward DE 4800 Filter -- if you have a spa attached to the system remain with the pump you have. If not you may be able to replace the impeller with a .75 hp with the same motor. The extra cost is in the labor, new impeller, seal, gasket. It would be even more beneficial if you only had 1.5" plumbing. The motor would last longer -- less strain on motor. The pressure may not change drastically especially if you have 1.5" pipes. And as an added bonus, the filter might even run better. Less force thru the grids. You might even have more suction at the vac head believe it or not it is a fact.

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How do you bachwash a hayward pool pump?

You don't backwash a pump, you backwash sand and D.E. Filters. To clean them you change your valve to the backwash setting. To clean a pump basket you turn off the pump, open the lid and pull the pump basket out, dump the contents and place it back into the pump and replace the cover. You may or may not need to prime the pump before you turn it back on.


How much earth goes into a Hayward Filter and when do you backwash it out and replace it?

A Hayward filter typically uses around 300-500 lbs of sand. The sand should be replaced every 5-7 years or when the flow rate decreases even after backwashing. Backwashing should be done when the filter pressure increases by 7-10 psi above the clean pressure.


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The recommended pressure for the Hayward CC15093S pool filter typically ranges between 10 to 20 psi when the filter is clean. As the filter media becomes dirty and clogged, the pressure will rise, indicating that it's time to clean or backwash the filter. Regularly monitoring the pressure can help maintain optimal filtration performance. Always refer to the manufacturer's manual for specific guidelines related to your model.


Do you need to bring pool pump and filter indoors?

No , if you have a D.E. filter instead of an older cartridge filter than the D.E. can get pretty messy if when you filter clean , and if you have a backwash when you backwash .


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Do you have to add DE powder everytime you clean your DE filters?

Yes. It is important because grids inside will not get clogged by dirt, dust and other elements getting into pool and will not brake that easily. Also pool water will look better and you will have easier filter cleaning next time. Add some D.E. after backwash, too.


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No you only backwash your pool when your filter pressure on your filter is high 30psi and above on most pools. If you backwash your pool be sure to add two scoops of de to your skimmer. If the presure is still high the u need to clean the filter


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Backwashing is done to clean the filter media in sand and DE systems. Cartridge filter systems don't have a "backwash" provision. You just remove the cartridges and wash off the dirt and debris with a hose.