Silica sand that is often used as a top layer has a diameter between 0.35 and 0.45 millimeters with a typical uniformity coefficient of 1.4. Also plan to leave an opening between the sand bed and excessive drainage. This space is known as freeboard, and most manufacturers suggest that it should rise to half the depth of the filter bed. The spin filter is outdated, but can still be found in older pool systems. The belts are wheel-shaped and horizontally aligned like a donut box.
By doing this, you can achieve the same flow rate without exceeding the maximum filter rate. Therefore, it is necessary to select a filter that is larger than the filter indicated by our calculations of the power requirements. This is especially true for commercial swimming pools and for backwashing. The plumbing line that leads from the pool or spa to the filter equipment.
This fine particle of gypsum can easily clog a sand bed and significantly shorten the duration of the first cycles. These filter cycles can be affected by many different factors, ranging from the swimmer’s heavy load and algae to dirt and debris blown by the wind. In addition, a sand filter in a newly plastered pool will quickly become clogged with gypsum dust, which often precipitates from the new plaster during commissioning procedures. – You can remove the cartridges one by one or all at once. To remove the cartridges one by one, unscrew the wing nuts and lift the cartridges. The first suspect with sand or turbid water DE is the backwash valve.
Never run a DE filter without DE, even for a short time. Remember that it is not the grids, but the DE that performs the actual filtering. The label on the filter tells you how much DE to add or refers to the table in the DE bag. aquarium equipment It tells you how many pounds of DE you need to add per square foot of filter surface. Now close the tank drain, turn the backwash valve to normal filtration and turn on the pump. Turn off the pump and turn the valve to rewind it.
They are pulled like rubber bands and the new ones follow the same path. Slowly pour the sand into the filter and be careful with the sides. Fill the sand to about two-thirds of the tank. Reassemble the filter and rinse parts back to remove dust and impurities from the new sand, then filter as usual.