one more antifreeze
one more antifreeze
(OP)
So for old and new timers
How exactly do you fill an antifreeze system both using the fill cup and pumping into the system?????
Have looked for and have not found any specifics on filling an antifreeze system???
Is there any????
How exactly do you fill an antifreeze system both using the fill cup and pumping into the system?????
Have looked for and have not found any specifics on filling an antifreeze system???
Is there any????





RE: one more antifreeze
I see you are looking for more information on these anti-freeze systems, presumibily because you got such a good response to the first post:)
As far as the pumping/filling procedure, it depends on the piping and valve arrangement (height of antifreeze piping in relation to the filling location). Solution can come in a premixed or mixed on site form.
My understanding of the procedure; if you look at figure 7.5.3.1, close the Approved indicating valve that is upstream of the fill location and drain the entire system of any water that may have existing from testing. Close drain valve. Since the height of the sprinkler pipe in the unheated section is higher than the fill cup, you would have to pump the solution into the filling cup location rather than gravity (pouring it in). You could remove the cup and attach a hose to the nipple of the fill cup. Both test valves would be closed. When you think you're close, open test valve A and verify solution is brought up to that point. Close the test valves, Close the filling cup location valve, open the indicating valve (upstream of the loop). ITM of solution in accordance with NFPA 25.
Variations exist pending backflow arangements, pipe elevations and existing valving.
Hoping others can jump in with some other insight/experience.
RE: one more antifreeze
thanks for the reply
seems like there would be something out there on how to fill a system
Also seems like there should be a requirement for a drain or test connection at the far end, in order to pump into the system till you get solution out of the drain/ test, and also seems like that would be a good place to do the annual test.
RE: one more antifreeze
RE: one more antifreeze
I guess with the bigger systems more in use now a days they decided a change was needed.
RE: one more antifreeze
Happy New Year!!!
RE: one more antifreeze
To answer cdafa
When we change antifreeze our process it to measure the piping and figure the volumn needed. We drain the lines. Sometimes we can remove a head at the end of each branch line. We then use a cheap shop vac to remove as much liqued as possible. We then tighten the heads, but not leak tight. We measure the amount of fluid, and compare that with our pipe volumn calculation. We then mix our antifreeze, testing it to insure we have the proper freeze protection. We usually pump the new solution w/our pump. We pump the antifreeze in until we get some seepage at the end of the branch lines. Then we tighten the heads. Before I bought the pump, we would remove a head, install a
bell adaptor and nipple. We poured the antifreeze in the
piping. The pump is better.
RE: one more antifreeze
thanks for th info
RE: one more antifreeze