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Comparing CS vs CSCR control boxes offered by goulds/xylem (from what I gather the current CS box offered by grundfos is made by xylem) the start capacitors are smaller in the CSCR boxes for the same motor HP. For example, CS only box for 3/4 hp list a 86-103 mfd start capacitor, where as the...

Yes, with the type of tank I have (whitewater PAT) there is a check valve just below the Pitless spool, and bleeders just below that to inject air into the tank each time the pump cycles.

Correction, looked in the box and the start capacitor is actually 88-105 mfd, so different than the tables currently shown by Pentair for the newer 3/4 HP VIP control boxes.

Can I reuse the current control box (Sta-rite VIP III, model VIP4D02-07, 3/4 HP CSCR-type, 59mfd start cap, 23mfd run cap) if I replace the pump with a 3-wire Grundfos 10s07-12 (3/4 HP MS402 motor)? The control box noted by Grundfos for this motor/pump is a CSIR with a 95mfd start capacitor.

Did some additional testing today. Draw down on the pressure tank was around 13 gallons, so I’m thinking it is more like a 60 gallon tank. It takes the pump almost 4 minutes to fill the 13 gallons, so it’s only making 3.3 GPM when just filling the tank. I now think there may be an issue with...

Not sure on the size of the tank, but I’d imagine it is the smallest 95 gallon one. There is not a csv on my system.

Also, I took off the cover to the controller, and on the backside it is noted that the pump is 3/4HP and model no. 8P-SPQ (this is all it says, no manufacturer). No luck with a Google search on this model number from a pump installed in 1989.

The well is 6” diameter, steel cased until the sandstone bedrock roughly 55’ down, after which there is just the 6” diameter drilled hole in the rock to 155’. Im not sure on the drop pipe construction, but am assuming 120’ of 1” steel pipe. The top of the casing contains a Whitewater Pitless...

Based on the date code my Sta-rite VIP III well pump controller, I have a ~34 year old well pump. The controller is model VIP4D02-07, which from what I gather would correspond to a 3/4HP well pump. The well record shows total bore depth of 155 ft, and a static water level ~88 feet below grade...

Just replaced mine on a whitewater pitless adapter tank. It looks exactly like the one pictured. The part number is GUV1100. I got mine from a parts supply house called First Supply here. They were $26 a piece. Not sure why yours are going bad so often. Are you rebalancing the tank once...

Also have a wife with long hair which always seems to clog our tub/shower trap, so I thought using a 3" trap/drain pipe would help in terms of clogging up the trap? Maybe not though? Thoughts?

Thanks for advice/alternative and quick response! Really appreciate it! Was planning on putting a cleanout on the vent as you mentioned.

Okay, Thanks! Could the shower vent be run horizontally first, similar to what's shown in the attached updated diagram?

Wondering if the attached diagram is an okay way to run waste plumbing for a basement shower and WC. Not sure if the WC would siphon water from the shower trap? Appreciate any advice. Thanks