Why does my filter pressure go up after a heavy rain?

[Manikshaw]

I noticed that every time we get a big rainstorm my pool filter pressure jumps up even though I cleaned it recently. The pool looks fine but the pressure gauge climbs faster than normal. Is rain causing this or is something else going on?

 

[Freddie]

I noticed that every time we get a big rainstorm my pool filter pressure jumps up even though I cleaned it recently. The pool looks fine but the pressure gauge climbs faster than normal. Is rain causing this or is something else going on?

Rain washes dirt, pollen and fine debris into the pool. That extra stuff ends up in the filter and makes the pressure rise.

 

[Zephyr]

I noticed that every time we get a big rainstorm my pool filter pressure jumps up even though I cleaned it recently. The pool looks fine but the pressure gauge climbs faster than normal. Is rain causing this or is something else going on?

If your pool is near trees or soil rain can bring in tiny particles you don’t really see. They clog the filter faster than normal debris.

 

[syedsam]

I noticed that every time we get a big rainstorm my pool filter pressure jumps up even though I cleaned it recently. The pool looks fine but the pressure gauge climbs faster than normal. Is rain causing this or is something else going on?

Check your skimmer baskets after storms. If they’re filling up quickly the filter is probably working harder than usual.

 

[Manikshaw]

That makes sense. We do have a lot of pollen and runoff after storms. I’ll keep a closer eye on the pressure after rain. Thanks for explaining.

 

[Sofia Suarez]

Yeah, heavy rain can absolutely make your filter pressure climb fast. Rain brings in fine dirt, pollen, and runoff, and all that stuff ends up loading the filter so the pressure rises quicker than normal. I usually empty the skimmer basket after a storm, then keep an eye on the pressure, and if it is climbing faster, I just plan on cleaning the filter more often that week.

 

[Ivy Adewale]

Yeah, heavy rain can definitely make your filter pressure climb faster. Storms bring in fine dust, pollen, and tiny debris you do not always see, and it all gets pulled in and loads up the filter, so the gauge rises even if the water still looks “fine.” I usually empty the skimmer basket after a storm and keep an eye on the pressure. If it jumps a good amount from your normal clean pressure, just backwash or clean it again. As long as the pressure drops back to normal after cleaning, it is usually just the filter working overtime, not something broken.