flow test after new softener

Lifespeed

Lifespeed

Member
Messages
415
Reaction score
7
Points
18
Location
California
Here is video of a recent copper re-pipe, tankless HWH and softener installation. I am getting 7.2 GPM cold, 6 GPM hot from a 1/2" shower valve. I'm glad I used the big Noritz with it's larger, less-restrictive heat exchanger.
 
Last edited:
IIRC he was concerned with maintaining the flow rate through the softener and the tankless heater. He may have had some other equipment as well but I guess he is happy that with all the stuff he did, he is getting the flow he wants/needs
 
test for echo

I was interested in verifying my design of the water and gas plumbing and equipment, particularly for flow rate and lack of water hammer when the valves are turned off. I did not use hammer arrestors except at the washing machine. I will repeat this right before a regen and test the treated water for hardness leakage at the 7+ GPM tub spout. This was the reason I went with the 1.5 cu ft softener and GAC tanks and the associated longer times between regen.
 
Last edited:
I wasn't impressed with the those gpm figures and unless you have a mixing/anti scald valve, they are way low IMO but...

You should have had another fixture or two running at the same time so you could see what effect that has on flow.

BTW, I didn't see a shower running, just a tub, did I miss it?
 
I know this will stir controversy but most plumbing codes require that flow be at least equal to the rated SFR with all fixtures operating at once and one of the big drawbacks to tankless heaters is that none of them will supply sufficient flow if any more than a couple of fixtures are running at the same time
 
You must log in or register to reply here.

Similar threads

schalliol
Navien Tankless Flush Problem: No Flow Out Hot Service Port
Replies
6
Views
727
schalliol
schalliol
A
Appreciate advice in replacing 31yr old water softener that's finally starting to go
2
Replies
36
Views
3K
Spreart1964
S
270win
New Hydrogen Sulfide problem
Replies
8
Views
3K
270win
270win
N
High PH with new softener
Replies
0
Views
1K
nadiyaeruj
N
Q
Moen 2570 valve water flow restricted
Replies
4
Views
2K
questdiscmask
Q
Back
Top