Recent Posts

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Pumps, Wells, Tanks, Controls / Confirming CSV use on high power pump/ residential and slight irrigation

« Last post by mgirardi1 on June 05, 2026, 04:30:02 PM »

Electronics by trade, plumber by necessity, so a noob question regarding proper deployment.

 - Putting in a large (Goulds GT15 - 64gpm) pump to serve for my vacation home use (5 bedroom 5.5 bath), as well as a pool feed (future minor irrigation)
 - INTL installation, so trying to get my ducks in a row. Can't buy anything on the island.
 - Water supply (1) is massive Cistern (15'x17'x8'), for pump, however, all plumbing is currently 1".
 - Water supply (2) is from utility, runs 50psi. Want to use the cistern primarily, and alternate when away.
 - Believe I can put the CSV-1 on pressure side of pump, and throttle it down to run a 40-60 switch, and the existing pipe should be fine (?)
 - Will use manifold from there to feed pressure tank (44g, too big I suppose), then tee off to pool pump using 1" for now.100psi safety valve attached, as well as pressure gauge.
 - Check valves and both manual and Wi-Fi ball valves (in that order) at utility and cistern supply entrances to prevent backfill/ siphoning
 - Cistern is built into the home (kind of standard down there), sits next to pump room, so minimal lift or distance
 - Questions:
 - Is this safe, and am I on the right track with my limited knowledge? Thinking a remote power switch to kill the pump power may be prudent (?)
 - Pressure tank hasn't shipped yet, so should I cancel and get a smaller one?
 - Any glaring misses here? My hope is the pump will live a long, healthy life throttled back, and I'll have future opportunity to drop a 2" pipe into the cistern and upsize pool feed to consider irrigation.

Lengthy, but thanks in advance!!!...mark

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Pumps, Wells, Tanks, Controls / Re: pump cycling, question

« Last post by Cary Austin on April 11, 2026, 08:12:04 PM »

Give us a call.  The problelm is probably something other than the CSV.

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Pumps, Wells, Tanks, Controls / pump cycling, question

« Last post by joshfish on April 05, 2026, 03:14:53 PM »

been quite a while but I have a quick question...

I noticed my pump cycling... should I be looking at the switch or the CSV? Valveman, thoughts?

I have had iron build up in the switches in the past. perhaps build up in the CSV?

my gauge, CSV and switch, here

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Irrigation / Re: Golf Course Irrigation

« Last post by Cary Austin on March 23, 2026, 06:12:32 PM »

Sorry for the delay.  We are always glad to help over the phone, and sometimes it is easier.   Also sorry for your problem.  We will help any way we can.  Sounds like you have had good service from your CSV3B valve as it has worked well for 15 years or so.  Many times they can be repaired, but a complete replacement is not expensive either.  The new CSV3A has been improved over the CSV3B.  Most last longer than 15 years, but wear from sediment when pumping from lakes, ponds, and sandy wells will shorten their life.  Swap where the two hoses are attached.  If the valve shuts down and gives almost no flow or pressure, the the regulator is the problem.  If after switching the hoses the pump still cycles off when using water the big part of the valve is the problem.

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Irrigation / Golf Course Irrigation

« Last post by Bayou Bengal on March 22, 2026, 10:02:34 AM »

I have a golf course irrigation system with 2 pumps and a cycle stop setup for each.  My issue is one of my pumps (15hp) is putting too much pressure on the header causing the system to trip.  I have adjusted the regulator in both directions but have no control of the pressure.  This system was installed by a contractor in 2011 and this is the first time we have had this trouble.  Only knowledge I have of any of this is what I "think" I have figured out.  The bladder and spring appear to be in great condition.  No holes or wear spots. Spring is still strong.  Could the regulator be my problem?  I am leaning to this because I get no reaction from pressure gauge when I open or close back on the regulator.  Using CSV 3 B 150 regulator.

Thanks in advance for any help.

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Industrial / Re: CSV for dairy with multiple wells

« Last post by Cary Austin on March 07, 2026, 09:29:42 AM »

That would work.  But if the frost line is not too deep in your area I prefer a larger valve box with a lid.

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Industrial / Re: CSV for dairy with multiple wells

« Last post by cnymaplehurst on March 06, 2026, 07:55:29 AM »

Ok, I'll plan on using a pair of CSV1A then.  I'll put them in the water lines just outside the pitless adapters and make covers for them out of 6 or 8 inch schedule 40 PVC so that they can be buried without being in direct contact with soil.

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Industrial / Re: CSV for dairy with multiple wells

« Last post by Cary Austin on March 05, 2026, 03:00:06 PM »

Sounds like a good plan.  But the CSC125 is the only valve we have that doesn't like iron or dirty water.  It will work, it just probably won't be long before they start leaking.  If these are less than 20 GPM pumps, the CSV1A is best.  But if they are 25 GPM or more the CSV3A2T would be needed. 

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Industrial / CSV for dairy with multiple wells

« Last post by cnymaplehurst on March 03, 2026, 03:01:49 PM »

Good Afternoon,
I'm looking at buying a pair of CSVS125-1 valves for the wells on our dairy farm and want to make sure that my plan for them is correct and that issues with our wells aren't going to cause any problems with the CSVs.

We have two wells about 60 feet deep with 4" submersible pumps (2 HP and 1.5 HP) with a pressure switch for each pump.  The wells are about 200 feet from each other and both produce water that is high in iron and both have been contaminated with iron eating bacteria that we control with chlorine pellet well chlorinators.  Both wells also have fine sand in the water which we filter out before the water goes into the barn water system with an 86 gallon fiberglass Wellmate bladder tank.

My plan is to put a 60 PSI CSVS125-1 on the 1.5 HP pump and set the pressure switch for it to 65/45 and then put a 50 PSI CSVS125-1 on the 2 HP pump with the pressure switch set for 55/35.  Is this an appropriate plan and will the chlorinators and sand cause any issues with the CSV?

Regards,
Nate

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Pumps, Wells, Tanks, Controls / Re: Determining back pressure with Psidekick

« Last post by Cary Austin on February 23, 2026, 08:20:39 AM »

Thanks for the confirmation.  Figuring the back pressure from a CSV is fairly easy.  Subtract the static water level from the pumps shut off head and divide by 2.31.