Thread: CSV ????

Until today I had not heard of a CSV. I am interested in them. I have two wells both are deep wells with one a 220V 3/4 hp submersible. The other well uses a 110V pump but I don't know the HP. How does one determine which CSV to use?

The CSV is usually matched to the pump. No larger than your pumps are I am sure a CSV1 will work for each. If you use both wells at the same time, you can stagger the pressures. Highest pressure well comes on first and lowest pressure last. For instance use a 50 PSI CSV150 on the 3/4 HP with pressure switch set at 40/60. Use a 40 PSI CSV140 on the smaller pump with a 30/50 pressure switch. If the first well cannot keep up with the water you are using, the second will come on and add the extra water you need. Or if the first well stops working, the second comes on automatically when water is needed.

Cycle Stop Valve Website

Sorry for the confusion. One well is at the house and one at my business.

I would still set them up as described. They will work fine independantly as well. Without any more info on the pumps, this is still my best suggestion for which valves to use.

Cycle Stop Valve Website

How big is your pressure tank, is it a bladder tank? What is your water usage, do you have a lot of lawn that you water, or a lot of trees?

Rancher

Both wells use submersible pumps. The pump at the shop is a 220V 3/4 Hp and the one for the house I don't know but suspect it may be 1/2 HP due to it being 110V. Eventually I will replace it.
Right now I have a 36gal/82 equiv. bladder tank at the house. There are only the two of us and very little lawn watering. Since it looks like I have to replace the tank can I go with a smaller tank say a 25 gal.?
What would be the net effect using the CSV would I get any more water or pressure or what or is the benefit that the pump doesn't have as many starts and stops? Like I said I had never heard of this valve before and still don't totally understand how it works.

The shop uses a 25 gal tank now and is used mostly for the bathroom, although it do use it to occasionally pressure clean and run outboard motors. It has the FloTec 3/4hp submersible.

The CSV will allow you to use a smaller tank. I still like a 20 gallon size tank with the CSV. The CSV will hold the pressure steady once the tank has drained and the pump starts as long as the water is being used. It will eliminate cycling while you are watering the yard or other outside uses. It won't make much difference in the house except for being able to use a smaller tank. And when using the smaller tank you will have a constant 50 PSI pressure in the shower instead of seeing the pressure change from 60 down to 40 then back up to 60.

Cycle Stop Valve Website

quote:Originally posted by JeffGr

There are only the two of us and very little lawn watering. Since it looks like I have to replace the tank can I go with a smaller tank say a 25 gal.?

You could but since you do little outside watering the cost of the small tank and the CSV will be a wash with replacement tank. If your system is designed correctly and not designed with a large pump and small tank, then the CSV is good if you want a pressure swing from 40-50psi in the shower instead of the 40-60 swing you have now.

quote:Originally posted by JeffGr

The shop uses a 25 gal tank now and is used mostly for the bathroom, although it do use it to occasionally pressure clean and run outboard motors. It has the FloTec 3/4hp submersible.

This one is cut and dry, you don't need a CSV here.

Rancher

You can always make it work without the CSV but, the CSV has several advantages. The 25 gallon tank you have only holds about 7 gallons of water and your pumps are probably 10 GPM pumps. So you must always use 10 GPM when you are watering the yard or your pump will cycle. If you use 5 GPM when watering the yard the excess water delivered by the pump will fill the tank in 1.5 minutes and the sprinklers will drain the tank in 1.5 minutes which makes a cycle every 3 minutes which is 20 times and hour or 480 times per day. Even if you double the size of pressure tank it will only cut the number of cycles to 240 times per day. The CSV will allow you to use from 1 to 10 GPM while watering the yard and the pump will never cycle on and off. So you never have to worry if you are running enough sprinklers or not. With the CSV you also do not have to run all 10 GPM when irrigating so you still have pressure for the house. Without the CSV you must use all 10 GPM that the pump will produce for the sprinklers, so if you need water in the house while the sprinklers are running, too bad. With the CSV you can keep the small tank and you will quickly have a constant (steady) 50 PSI in the shower instead of seeing the pressure continually increase and decrease between 40 and 60 PSI.

Cycle Stop Valve Website

Update;
I ordered the CSV1 from Bob. It has been in since February. I also installed a new pressure switch set at 40-60. I redid all the plumbing at the well house.
The pump I found out is a 110V 1/2 submersible 10 amp. and is rated for I believe 10gpm.
I installed a new pressure tank, 25 gallon.
The well is about 450+ feet from the house and the pump is about 75 feet down, water level about 20' down. I use 1 1/4 pipe down the well and 1" to the house.

I have more pressure, and a constant volume and pressure now. Before I had cycling constantly and a definite lack of water when the pump was trying to fill the tank and supply water at the same time. The CSV cured all the ills. I now have water on par with city water, which is available 15 miles from here! Other than a pipe coming loose which is detailed on another post, the system is operating absolutely great. thanks for all the help and advise.