After hose fills with water, run for 1 - 2 minutes or until water runs clear. Shut off and push handle back down. Turn pump on and run in filter position for 15 seconds and then shut pump off and backwash again for 1 min. Filter again for 15 seconds and another 30 second backwash. Bumping and backwashing are 2 different things. You do not need to add DE after bumping, but do after a backwash or cleanout. Whenever I bump the filter, DE comes out in the rinse. 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. Rule Number One- You NEVER run the DE filter without the DE powder in the filter. (Tip: if you need to circulate the water and you do not want the water going through the filter and you have a multiport valve on the filter you may run it with the valve in the re-circulate position.
You do a backwash out of a pool. If the filter is not backwashed dirt and?? filtered builds up and if it dies not stop the water flow rhe dirt will be discharged back int ok the pool. A good way to tell when to backwash is watch for the pressure on the input side ti increase by a few psi.
The most common cause of high pressure in a pool is a dirty filter. Take cartridges as an example, as the material sives dirt from your pool water, the cartridge fabric more and more clogged. The clogging means the water has fewer and smaller perforations in the filter media to squeeze through.
You should clean your DE filter at least once every month or whenever you're pounds per square inch is 8 to 10 pounds above the normal starting pressure. Cleaning your DE Filter involves three basic steps: Backwashing, Cleaning the manifold and grid and adding new DE. The first step in cleaning your DE is to backwash.
When diatomaceous earth is introduced into the pool filter system, it coats the filter cloth. As water passes over the filter grids, the DE particles capture even the smallest suspended dirt particles. Water passes through a series of DE-coated grids. Under a microscope, DE looks like a collection of tiny sponges.
Backwashing can take only a few minutes to complete, but for a typical pool, it consumes approximately 200 to 300 gallons of pool water! So, while your filter is losing unwanted dirt and debris—your pool is losing a ton of water.
Backwashing Your Pool Filter Too Often Pool water washes funk and gunk out of your filter media, then exits through your filters backwash valve drain port. Backwashing is an important part of basic pool care, but overdoing it is one of the more common pool maintenance mistakes.
Once your pump and filter turns off, the tablets keep dissolving in your skimmer, forming highly acidic water. Once the pump is turned back on, this same acidic water goes straight into the filter. Whatever you do, though, please do not put chlorine tablets into your skimmer or pump!
After You Vacuum Your Pool Clear any debris in your pump strainer basket, and give the filter a final backwashing if you have a multiport system and used the “Filter” setting.
If anything could be considered "normal", it would be about 10 psi. Most filter systems are designed to operate in the 5-15 or 10-20 psi range. The way to find out your particular correct pool filter pressure is to clean or backwash the filter thoroughly and empty the pump and skimmer baskets.
DE Filter Grids Clogged with Oil Small amounts of oil inevitably find their way into your open air pool. Using a degreaser like TSP, or our DE filter cleaner product, soaking to remove oils is a good treatment every year or two, to remove DE grid fabric clogging oils.
The commonly-accepted value is 1. 25 lbs/10 ft2″. This equates to 2 ounces per 1 square foot of filter area. It is very important to put in the correct amount of D. E: too little D. E. will result in dirt, oils and other debris being embedded into the grids, ruining them.