Messages

1

Pumps, Wells, Tanks, Controls / Re: Enough psi, but not enough volume(toilet with Sloan 3.5 gallon flushometer)

« on: April 27, 2018, 08:51:58 AM »

Cary,
Thanks for your help. Before I invest in a pressure tank, I have one last comment. I haven't plumbed the toilet yet, so if I do, then I assume that the water supply pipe to the toilet will have to be 1 1/8" to match the inlet at the Control Stop on the Sloan flushometer. This will insure no restrictions from the pressure tank to the toilet. The pressure tank has a 1 1/4 fitting, so there shouldn't be any restrictions at this area....right?

John

2

Pumps, Wells, Tanks, Controls / Enough psi, but not enough volume(toilet with Sloan 3.5 gallon flushometer)

« on: April 26, 2018, 05:33:12 PM »

Hello,
 I have been finding conflicting answers to the following question and would like help on finding an answer.
Question:
What size expansion tank is needed to flush a toilet with a 3.5 gpf Sloan flushometer ?
Ok, here is what I am trying to do. I bought a toilet with a Sloan flushometer on it, which requires more volume of water than my 7/8" city water main can supply. There is more than enough pressure coming from the city line at 61 psi, but not the water volume. I have been told by several plumbers that the installation of a well pressure tank should provide enough volume to flush the toilet. The 61 psi city water line pressure is enough to fill the pressure tank without a pump , so again, all that is needed is a pressure tank put INLINE with the toilet. There is no need to add extra volume to the whole house, just the toilet, one appliance. And since I am the only person in the house, I do not have to be concerned about more than one plumbing fixture operating at a time.
I have been told that I will need a tank that will hold 3 times the 3.5 gallons needed to flush the toilet, which is 10.3 gallons. This is, as I understand, the amount of water needed in the pressure tank in addition to that of the tanks diaphragm volume. Can you assist me in finding the answer?  What size pressure tank will I need that will provide the volume of water to flush a toilet with a 3.5 gpf Solan flushometer?

Thanks!
John