Table of Contents
Backwashing a sand or DE filter is a simple task. Shut off the pump, set the multiport valve or slide valve handle to the backwash position, roll out the backwash hose and turn the pump on again. Backwash for 3-4 minutes or until the water runs clear, then shut the pump off and return the valve to the filter position.
Do you have to add DE Every time you backwash?
After backwashing, new DE must be added to the filter. Add the entire amount of DE the filter recommends. If you see DE returning to the pool, vacuum it to waste, after it settles. The next time you backwash and recoat, decrease the amount by 1 pound.
How do you backwash a pool DE filter?
How to Backwash a DE Pool Filter Step 1: Turn off pool equipment. Step 2: Rotate the valve to the “Backwash” position. Step 3: Turn equipment back on and run the first cycle. Step 4: Turn the equipment off again. Step 5: Rotate the valve to the “Rinse” position. Step 6: Turn equipment back on and run the second cycle.
How often should a DE filter be backwashed?
Bottom line, the filter must be backwashed on a regular basis to ensure that your pool water is clear. “When do we need to backwash?” – It is recommended to backwash your filter once every 4-6 weeks of regular use.
What happens if not enough DE in filter?
If you do not add enough DE to your filter, then the grids are not totally coated with DE and the dirt that goes into your filter will attach itself right to the fabric on the grids and will not backwash off. This will cause your filter to short cycle (go very short times between backwashing).
Why does my DE filter pressure keep rising?
If your filter pressure is higher than normal, this usually indicates a dirty pool filter. We generally recommend backwashing your filter (or cleaning your cartridges) when the pressure rises 8-10 PSI above the clean start-up pressure. Either scenario will cause the pressure to rise to very high levels.
How do you vacuum to waste with a DE filter?
HOW TO VACUUM TO WASTE A POOL: Fill the pool before beginning, and run the hose while vacuuming. Shut off pump and switch the multiport valve to the Drain to Waste Position. Vacuum as fast as possible, the water level can drop fast. Stop vacuuming when the skimmer begins to suck air, allow the pool to refill.
Do you lose sand when backwashing?
Excessive sand coming out when backwashing is not normal. Often, excess sand gets into the wrong places when refilling and will sand to come out into the pool or out of the backwash hose. But it should go away after a few runs. In general, you shouldn’t be losing sand from your sand filter.
How do I get rid of diatomaceous earth in my pool?
This leaves your pool a cloudy, muddy-looking mess. Luckily however, the powder usually sinks to the bottom of the pool. The only way to remove the earth from your pool is to vacuum the pool with the filter release valve open. This will allow the earth to flush from the filter.
How many pounds is a DE scoop?
A DE Scoop is specially designed to measure DE powder and 1 scoop is equal to 1/2 lb. of DE powder. To determine how many scoops or coffee cans of DE your filter requires take your filter square footage and divide by 5 (this would be after a full cleaning).
How long do you rinse after backwash?
Turn the lever to RINSE, start the pump and rinse for about 15-30 seconds. Stop the pump and turn the lever to FILTER. This is the normal operating position. Close the drain outlet valve and start the pump.
How long do DE filters last?
Those with DE filters are probably extremely happy with the quality of water that a DE filter creates, but there comes a time when you will need to replace the filter grids. This is usually after 7-10 years of hard work.
How much DE do I add after backwash?
After a backwash, to get the amount of DE powder, simply take the recommended amount of DE powder for a new filter and multiply it by 0.8, or 80%.
What is normal pressure for a DE pool filter?
The pool filter pressure should be steady, operating in a range of +/- 10 psi. When it’s outside this range, very low or very high, then you know that something’s wrong. Some gauges allow you to set the clean and dirty range, or you can write it on the filter tank with a marker.
What happens if you put too much DE in filter?
Adding too much DE to your pool may cause multiple negative results. These ramifications include a clogged skimmer, turning the pool cloudy, reducing the circulatory pressure in the pool and putting too much work on your pump that may result in eventually breaking the pump.
Why does my DE pool filter keep clogging?
DE Filter Grids Clogged with Oil Much is brought in on the wind, or dragged in by swimmers. Pool lubricants and some gel type pool clarifiers can add oils to your pool, which eventually is trapped in the filter grids.
How do you backwash a Hayward cartridge filter?
How do I backwash my filter? When the filter pressure rise 8-10 PSI over the clean starting pressure it is time to backwash. Turn the pump off and rotate the multiport valve to backwash. Turn on the pump and the dirty water will flow out the waste line.
