I just cleaned my 48 sq ft DE filter on Sunday and my pool pressure reads 15 psi (before cleaning 19 psi) and when I change the discharge and suction to the spa the pressure increases to 35 PSI. I am concerned this is too high. I took off all the jets in the spa and stuck a coathanger in about a foot to clear anything and nothing came out.
How can I reduce the pressure? Unfortunately I do not have a baseline pressure from before as the gauge was broken and I just replaced it when I cleaned the filter