Hi I am new to posting here, I have lurked off and on over the years. This is my third house with a pool. However, I hate this pool! When I initially bought this house my mother (picked it out and) lived in it and I didn't have to deal with the pool. Well now I live here and I don't know what to do.
I have a 8K gallon fiberglass pool with two inlets, one skimmer, 1 main drain, and side suction for cleaner, with a navigator attached, pool was built in 2005. The pump housing was cracked when the home was purchased in 2008. At the time of purchase the pressure on the filter read about 8psi. I know she had the pump repaired many times over the years and I noticed it also has had the motor replaced. (she never maintained the pool or filters or baskets)
Well the pump has been getting louder and the pressure has been really low the last 5-6 months. So I decided to just replace the pump. The pump that was there was a 1HP, s.f. 165. I replaced it with a Pentair whisperflo 1.5 HP uprated, sf HP 1.65. Everything started up great and the pressure started off at about 12psi on the gage. Over the next hour the pump gradually got as loud as the old pump and and the pressure had dropped down gradually where the last pump was at - down to barely 5psi.
I took apart the filter, cleaned it again, lubed the o-ring, cleaned the baskets, lubed the pump basket, and turned it back on. The pressure again started at 10psi, but over the next hour it again dropped down to about 5psi with the pump being really loud. No screeching or anything just very loud operation.
So I turned it off, as I turned it off I noticed the cartridge filter cover sink down. Maybe it has always done this but I never paid attention to it. I turned it on and off a few times and noticed it raises and drops with the power.
Anyways I don't know what to do about this, I need some ideas of what I need to look at.
The filter is a sta rite system II plm 150, max gpm 56, max psi 50, I replaced that filter about 1.5 years ago and it still looks in great shape. All the piping above the ground is 2 inches. I have no idea what is below ground, but the pump and filter sit about 10 from the return two return lines and about 30 feet from the skimmer.
After that is a zodiac clear water salt cell, also newly replaced about 6 months ago.
Can anybody help me with what I need to do? check? change or replace?