Recent content by PandT

Mark, I used fitting loss values and friction loss calculator on Lasco website. 2" PVC (Schedule 40), estimated horizontal and vertical pipe lengths, number of elbows and tees (mostly not straight thru), and included 6.0psi drop thru DE filter (perhaps should exclude since it is downstream of...

Mark, Well, we decided to go with the Whisperflo 2-speed. Then we tried to buy one. Could not find any Pentair dealers (from their website list) in the Houston area that stock ANY 2-speed pumps. The carry them only as special order (2 weeks). Internet ordering could get it that quick, but the...

Mark, Great, thanks. One last pump choice question: **If** we got good lightning protection, it sounds like ROI is the reason to go VS or 2-speed. Our unregulated power runs about 0.14/kWHr. Running WFDS-6 / -28 ($655) on Low (3.5A) will get 3 full turns of pool volume in 14 hrs. Intelliflo VS...

Mark, Don't know. The only legible labels are for the motor. Here's a pic. Thanks, Patrick

Mark, I checked out the motor you linked above, and wonder about just replacing it versus the whole pump for two reasons: (1) pump housing has had leaks, some worse than others, the whole 4 years we've lived in this house. Replacing it may be necessary you think? (2) will the 2 HP impeller...

Thanks for the insight. Apart from seeing water on the pump housing / pad, how are leaks detected that could get to the bearings? In our case, the Pool Guy refused to fix the latest pump leak till we got a pool leak fixed - and as soon as we did, it started screaming like a banshee ...

Mark, Thanks much for the sizing info. One more question before we pull the trigger: I found another post where you mention motor life is less than half 80,000 hours. Running more hours at less power will help - but how does the MTBF vary as a function of time and low vs high speed? Thanks...

Yes, those rough dimensions were at the eyeball. With a 2-speed, how would we size it for using high speed to run the spa (which is not often)? Thanks for your help!

Appreciate the help. Here are the particulars: Main pump: AO Smith B855. 3450 rpm, 2.0 HP, 230v 1 phase, SF 1.10, 50C ambient 2nd pump: AO Smith p/n 35-5339 (model illegible). 3450rpm, 230/115v @ 7.1/14.2A, 40C ambient Spa blower: Polaris model 1-470-02. 1.5 peak HP, 240v 1 phase 3.8A DE...

Thanks much for the feedback. The main pump has been nickel-and-dime repaired by First American home warranty for the last 4 years. We thought it needed to be replaced to begin with. They have since fixed leaks multiple times, replaced the impeller last year, and now it sounds like a low rider...

Noob needs help. Pool built 1999. Bought house 2009. Main pump is dying a noisy death and must be replaced. Love what we've found on TFP and plan to go BBB to save $ and effort. Also interested in going SWCG. Pool is in full sun, equipment gets afternoon sun (pump temp ratings are 50C and 40C...