My haward sand filter is running at about 20 psi is that normal
That 20 PSI does not mean anything to anyone that is going to help you. Every system will have its own "Starting Pressure". It all depends on how it is plumbed, what equipment is included (size and GPM), how big the pool is will address the issue of how much plumbing is involved, total feet & amount of fittings, valves, etc (mainly elbows create more restriction, raising the overall PSI, and if a Solar System is involved?
So, is 20 PSI normal, if you have a Solar System in an average inground pool in the backyard, then that could be about normal? If you have an Above ground pool with only a pump & filter, then that could be pretty high over normal.
The best thing is to backwash your filter very good, if possible use a sand filter media cleaner, available in most Pool/Spa Retail Stores. Follow the instructions on the label and proceed with the cleansing of the sand (media). Then when you turn everything back on to normal filter mode after the cleansing, make a note of the pressure! This will be "Your Systems" starting pressure. Take a "Sharpie" and write that number right on the filter tank. When the pressure climbs to 8-10 lbs over that starting pressure, backwash.
Jun 27, 2014 |
Hayward SAND FILTER, PRO SERIES