Sand Filter & Pump Motor

[ridgelljk]

I'm learning what I can about taking care of my pool. I have an inground 25-30,000 gallon pool. My pump motor is 2hp full rated and I have a Pentair Triton 100 sand filter with 600lbs of sand. Is the motor sized correctly for my Filter?

Thanks, Jack

[duraleigh]

Hi, Jack,

Short answer...No. A full-rated 2hp pump on a typical pool will push a lot of water. Without seeing the pump curve and asking about your set-up, I can't tell you exactly how much.

However, I am pretty sure it is higher than the 100gpm your TR-100 is rated. The pump should always be producing less GPM than the filter's capacity....I'm sure yours is producing more.

The filter is nicely sized for your pool, but a full rated 1hp would be a better match.

[ridgelljk]

Wow,Thanks.

How would that affect the filter's performance? I was thinking I needed a de filter because my water is pretty clear down to the top of 3rd step but after that not too clear. Now maybe just a smaller motor would give me better results?

[duraleigh]

Hi, again, Jack,

Well, the 1hp pump would save a little energy cost but I don't think it would clear your pool.

99% of water clarity issues on this forum are from a lack of chlorine. I am guessing that is your issue, too.

The only way we can do anything but guess at your problem is to post a full set of test results.

FC
CC
Alk
pH
CYA

If those don't make sense, post back and we'll get you some explanations.

[duraleigh]

Jack,

I just found a pump curve for a good, full-rated 2hp pump. Using a typical TDH of 50 for your pool (it could be more or less), you're pushing 130-140 gpm thru a filter only rated for 100gpm.

[ridgelljk]

OK great this is all great information for me to digest.
Without changing the pump can't I put a 1.5 hp impeller on my StayRite pump. Maybe change the pump later. More torque but less water throughput and less money for now.

My Chemical levels are ( from a 6 way strip)
TH 400
FC 2
PH 7.5
TA 80
CYA 30-50

Thia is a salt water pool with a Goldline Controls system.

Thanks JK