|
There is a backflow preventer in the winterization ftg ... if you had all the faucets turned off before you removed the air line, that might account for the slight pressurization when opening the low point drain. The down side of winterizing with air is you never get absolutely all the water out ... depending on how the plumbing is routed ... a small amount of water can still pool in any low point after you remove the air source. That said ... I doubt if there will be enough water left in the system to matter provided you let the air blow for several minutes.
PS: Be sure you do pour the pink stuff down all the drains to protect the traps.
|
Hybrid Mode
