Gushing water sounds from radiator boards

micjoe

The last week I am hearing water sounds coming from most my floor board radiators. Today I checked Boiler and the grey tank coming out of boiler is making clicking sounds and a small amount of water dripping from top - says air scoupe on top of it. Anyway I can Handle this issue myself , where do I begin,?

micjoe

micjoe

billtwocase

Hivent is no good. Those Taco 400's have gone down the toilet as of lately. I would have it replaced, Amtrol 700 has been my choice lately, have the air checked in that extrol, check water temps, and have the system purged. This I would recommend a pro from here perhaps.

micjoe

micjoe

Any thoughts do I let air out of that grey tank somehow- I triied to bleed my furnace and recycle water. Softer to no help

j a_2

Sounds like your system is low on water…You need to find out where its leaking and repair it…If not already installed you might some day have a low water cutoff installed….Is your fill valve left open or closed…Most likely you have a watts 911 as your pressure and back flow assembly…If its noi filling lift the little lever on the top of the dome with the fill valve in the open position…Lots of time they stick….But do not leave the fill valve open it only masks problems….Oh boy the fill valve thing again,open or closed…Me closed...

billtwocase

The tank is an expansion tank that is, or should be, charged with 12-15 PSI air. How are you bleeding the system?

micjoe

Thanks billtwocase

micjoe

I meant I bleed it the lines let oil out from furnace - sounds like this is a different issue. Where is the fill valve j a?

billtwocase

looks like zero pressure to me too j a

j a_2

On the 1/2 copper cold line coming from your domestic water

micjoe

How do I get pressure up- I also have well water and a pump in the bottom of my well

billtwocase

looks like an 1156 just under the draft control

micjoe

Ok do I look for a lever on the pipe? I have on - off valves where is the adjustment on cold water line and what is 1156 under the draft control mean - thanks guys

j a_2

Trying to help and it should be easy,however your installer did a poor job on the install and failed to follow basic procedures The fill valve should be located on a branch tee just under the expansion tank….Tap the bottom of the tank, is it hollow or solid? solid means it has failed as its filled with water…Its reason is to provide room for expansion of the water at a rate of about 5 %…..A failed one normally shows up as a dripping relief valve...

billtwocase

The auto feed valve is a Watts 1156. What does your pressure gauge read?

micjoe

T
he

micjoe

The blue item under expansion is that the fill valve- ??I don't have a gage on water just my furnace is that what u wanted ?? I also have a water softener system feeding into the system. The dripping water is coming out of the the silver thing above tAsco air scope. The expansion tank doesn't appear to be solid or evident of heavy water in it

micjoe

j a_2

the last pic posted is the como back flow fill regulator….the leaking silver thing is the hyhat made by watts on op of the air separator….

micjoe

Is that the fill valve where blue tag is

micjoe

Ok in the last pick try to open the fill valve??

billtwocase

Nice. Backflow installed after the feed valve. I would close the cap on the leaking hivent, and give the lever on the feed a quick lift. Watch your pressure gauge, and just in case, shut the valve off before it when it reaches about 15

billtwocase

I would plan on replacing the combo feed/backflow preventer. The installer was nice enough to use an iron nipple between them. Most likely all is plugged with rust

micjoe

Ok will do thanks billtwocase

micjoe

update the pros replace the hivent and combo regulator and all is well now- thanks guys

billtwocase

Glad to hear that you are back in business.

icesailor

What's the quality of your water that you are putting in that heating system? If the PH is very low, and you are using a water softener, you can add a lot of salt to the system which becomes corrosive. If the well water being treated has a high PPM iron content and the softener is being used to filter iron as a form of hardness, it will be corrosive to the system. Copper, Cast Iron and steel have a wonderful el

When you see float vents leak into Extrol tanks, and they are all stained red and rusty, its because the boiler is falling apart.

Taco 400 Float Vents work as well as any other float vent in my experience. If the system pressure is allowed to go to zero at the boiler, it will make steam and vent through the can vents. Just like that one. I used to change a few dozen per year. One day, after changing one a few months before, I started leaving thr caps tight. As usual, I never had a air bound system, and the world didn't stop, the earth didn't to a 180 degree on its axis.

If they are new, once they have done their job of venting, leave the caps tight. They ARE repairable. Easily. Anyone know of a major supplier who stocks them? Or are the "Special Order" parts more costly than the whole new vent.

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