Jadnashua
Retired Defense Industry Engineer xxx
My boiler system is a bear to bleed all of the air from it. It has radiant in-floorheat at the highest point, so it generally takes a fair amount of flow through the whole thing to flush the air out. What's then left, the air extractors can handle to finish it off.
The problem is, trying to commission a new boiler and putting in the conditioner recommended by the manufacturer. Measure out the required amount while the system is nearly empty, and there are places you can insert it (essentially, pour it in). But, then once you've filled it up, you have to purge the air out enough so it can safely be turned back on. In that process, you'll end up flushing out some unknown amount of the conditioner (it wants a 1-1.5% concentration).
I thought about trying to make a pressure injector for the stuff, but haven't found anything off the shelf. About the only way to insert any after the system is pressurized is to insert it under pressure from say one of the drain valves.
Is there another way?
FWIW, I do have a concentration test kit to verify the proper mix. At $30/quart, (it should only need about 12-14oz for my volume), it will start to get expensive. The stuff I'm using is Sentinel x100, one of the ones recommended by the boiler manufacturer. Don't know how much it may help in the long run, but want this one to last as long as possible.
The problem is, trying to commission a new boiler and putting in the conditioner recommended by the manufacturer. Measure out the required amount while the system is nearly empty, and there are places you can insert it (essentially, pour it in). But, then once you've filled it up, you have to purge the air out enough so it can safely be turned back on. In that process, you'll end up flushing out some unknown amount of the conditioner (it wants a 1-1.5% concentration).
I thought about trying to make a pressure injector for the stuff, but haven't found anything off the shelf. About the only way to insert any after the system is pressurized is to insert it under pressure from say one of the drain valves.
Is there another way?
FWIW, I do have a concentration test kit to verify the proper mix. At $30/quart, (it should only need about 12-14oz for my volume), it will start to get expensive. The stuff I'm using is Sentinel x100, one of the ones recommended by the boiler manufacturer. Don't know how much it may help in the long run, but want this one to last as long as possible.