How to backwash a pool sand filter?
Pool sand filters are cost effective to operate, low-maintenance, and simple to utilize. Many pool owners look for they are doing a fantastic work of ensuring fresh, sparkling water for the swimming season. Making use of ordinary silica play ground sand, they filter particulate matter within the 20 to 100 micron range. Indeed, the greater matter it gathers, the greater efficient the filter becomes. But to make sure adequate blood flow through filter media, pool proprietors should backwash the sand filter to prevent buildup and blocking.
When to Backwash
Pool proprietors should backwash the share sand filter on a number of occasions. Backwashing the share filter is easy to complete and requires almost no work. Performing an instant backwash on a weekly foundation prevents buildup. Incorporating it into the weekly maintenance program before you apply shock or any other chemicals may be beneficial.
Pool sand filters have a measure that suggests the internal water force filtering through the canister. Whenever an excessive amount of particulate matter accumulates, it does increase the pressure and reduces the effectiveness of the filter. Once the stress gauge registers at 8 to 10 lbs. over the clean stress, it is time to backwash.
Sand filters require backwashing whenever opening the pool in summer and shutting it into the autumn for people who cannot use their swimming pools year-round. Whenever recovering a share infested with black or green algae, share proprietors must backwash the sand filter usually to remove algae from the filter medium to make certain it will not re-infect the pool.
Some share chemical producers recommend backwashing share sand filters before and after application, including producers of flocculants and algaecides. Flocculants trap and sink particulate matter for simple vacuuming. Pull this debris through the filter by backwashing to avoid it from preventing the blood flow.
Backwashing a Multiport Valve Sand Filter
Most sand filters have a multiport valve in addition to the canister with a lever device for selecting options. Configurations in the sand filter may include filter, waste, backwash, recirculate, wash, and sealed. Only a few tips have to backwash these filters.
Direct Liquid Spend
Very first, switch off the pump in order to avoid damaging it. Backwashing pulls liquid through the share and utilizes it to clean the sand into the filter, after that discharges it outside the pool. Some backwash ports bare to waste drains with PVC pipeline. Other individuals can use standard share hoses to direct water away from the pump. If making use of a hose for release, unroll it and direct the end downslope to an area with great drainage. Some pool owners may want to make use of this water for irrigating landscape flowers or lawns. Chlorine degrades quickly in sunlight, so this should really be safe provided that backwashing precedes any substance treatments.
Set the Valve and Backwash
The valve is generally emerge filter mode. Press along the lever and move the device to your backwash environment. Turn the pump-back on and invite it to perform for approximately 2-3 mins according to the cleanliness associated with sand. If making use of a backwash hose, watch it when it comes to clarity of release water and be tuned in to possible kinks. If the filter discharges to a drain, view the sight glass on the side associated with the filter. It contains water and only a little sand. Turn fully off the pump once the water is no longer dirty and appears obvious.
Rinse the Sand
After backwashing, place the device from the rinse setting. This circulates water outrageous associated with the sand filter inside other way and packs along the sand to produce a dense filter. Rinse the sand for 1 to 2 mins, or until there clearly was little to no sand remaining in picture glass. Turn fully off the share pump after rinsing.
Return to Normal Operation
Pull and roll up the backwash hose pipe if utilized. Position the filter valve in the typical filter position and switch the pump-back on. Note the reading regarding the force gauge. Its a good idea to mark pressure reading whenever filter is clean with a permanent marker for future guide.
Simple tips to Buy Pool Sand Filters on e-bay
Home owners will get numerous pool services and products on e-bay, including sand filters and share pumps. Typing "pool sand filter" into the search club found on any page on the webpage leads to many choices, and buyers can slim the options by maker or size. Check the capacity regarding the pool in addition to present pump before purchasing a pool filter. The capability must certanly be more than that the pump, and enormous adequate to efficiently filter the whole amount of the pool twice in a 24-hour duration.