I recently purchased a home that has a pool. This is the first time that I have owned/maintained a pool but I am confident that I can. I have read through the pool school and have spoken to the previous owner about the plumbing and maintenance albeit not thoroughly - very high level.
When we first moved in the PSI at the filter (DE type) was running at 10 PSI. This past weekend, my wife and I cleaned the pool out for the first time in about two weeks. We attached the vacuum to the to the inlet and I adjusted the valve about 50/50 vacuum/skimmer. From what I recall the pressure was still at 10 PSI at that time. We vacuumed all three leave that were at the bottom of the pool. That evening, I noticed the pressure had increased to 22 PSI. At that time I did not attribute that to vacuuming the pool nor do I know now if it's atributable or not.
I backwashed the pool for 4 or 5 minutes this morning and added a full amount of DE. The pressure remained high. The manager at Leslie's recommended that I do a full filter cleaning - which I was told was "done recently". "Done recently" is extremely relative.
So my question is - is it normal for the filter pressure to increase after vacuuming? Would a full clean out of the DE Filter be recommended? Is there anything else I should be looking at?
Thank you in advance.