Before spending $1,000 for a new filter (I'd do the installation), I thought I'd run it by the experts to see what you'd do.
First, it's a Pentair Tr100 Triton II and is likely 25-30 years old. (Bought the house 6 years ago.)
Second, I've been getting sand in the pool for the last couple of years, but this year it's gotten worse. So I'm thinking broken lateral. We did carefully change the sand in the filter last year.
Third, the pressure in the system is about 6-7psi @ 1500rpm, and 12 @ 2200rpm. However, and I don't know if it's related to the lateral in any way, after slamming last week and passing all tests, and the water being really clear since, it seems that every couple of hours the pressure gauge drops to almost zero. After a while more the flow is impeded, the waterfall from the spa slows down. Once I backwash, the pressure goes back to 6-12 depending on the speed of the pump. Since the pressure is supposed to go up when backwashing is needed, why would ours be going down?
Also, minor issues.... it has a slight leak from one of the pipes that goes to the multiport valve, and it's been tightened as much as possible. Not a huge deal, since it's a slow leak.
And it leaks from the top lid no matter how tight it is and even with lube and a new o-ring. Also not a huge deal, since it's pretty minimal and only happens at high rpms and when the pump is starting.
Thoughts? I could first open it up, empty it out, and see how everything looks, or do these filters have a life expectancy?
Thanks for your input--
First, it's a Pentair Tr100 Triton II and is likely 25-30 years old. (Bought the house 6 years ago.)
Second, I've been getting sand in the pool for the last couple of years, but this year it's gotten worse. So I'm thinking broken lateral. We did carefully change the sand in the filter last year.
Third, the pressure in the system is about 6-7psi @ 1500rpm, and 12 @ 2200rpm. However, and I don't know if it's related to the lateral in any way, after slamming last week and passing all tests, and the water being really clear since, it seems that every couple of hours the pressure gauge drops to almost zero. After a while more the flow is impeded, the waterfall from the spa slows down. Once I backwash, the pressure goes back to 6-12 depending on the speed of the pump. Since the pressure is supposed to go up when backwashing is needed, why would ours be going down?
Also, minor issues.... it has a slight leak from one of the pipes that goes to the multiport valve, and it's been tightened as much as possible. Not a huge deal, since it's a slow leak.
And it leaks from the top lid no matter how tight it is and even with lube and a new o-ring. Also not a huge deal, since it's pretty minimal and only happens at high rpms and when the pump is starting.
Thoughts? I could first open it up, empty it out, and see how everything looks, or do these filters have a life expectancy?
Thanks for your input--
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