Island house closing and winter access?

Dave M · 10-10-2007, 04:45 PM

Just to clear things up, I meant to say RV anti-freeze but couldn't think of it, although I did mention "safe". I could've been a lot clearer. I wouldn't use anything else.

Now a question. Like LIforrelaxin, my camp pipes drains good. Last year I had ice coming out of the main pipe from the well. They put it level in the camp(duh). On the main pipe is a valve like a tire would have and some other adapter that has a thread. Can either one be used to blow the lines out. I was told they were for adding air to my captive air water tank. I was thinking on using one of the small compressor for tires,etc. on to the valve. Am I asking for trouble here. I really only have to blow the main line back out to the well since there's a drainage adapter buried in the ground to get rid of water in the lines.

Dave M

Rattlesnake Guy · 10-11-2007, 03:38 PM

Dave,
The expansion tank has a rubber bladder which divides it into a water side and air side. The air compresses as the water pressure increases.

You can not blow out the lines by adding more air to this valve. It would only increase the air pressure on that side of the bladder.

You can add the air at any point but generally it is done at a high point. Also be careful as wells and pumps have check valves that will prevent the water from being simply blown out. I have one next to the pump and at the end of the inlet pipe in the lake. This is required to keep the water that is pressurized from simply returning when the pump shuts off.

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10-10-2007, 04:45 PM	#1
Dave M Senior Member Join Date: Jul 2007 Posts: 395 Thanks: 4 Thanked 26 Times in 24 Posts	Just to clear things up, I meant to say RV anti-freeze but couldn't think of it, although I did mention "safe". I could've been a lot clearer. I wouldn't use anything else. Now a question. Like LIforrelaxin, my camp pipes drains good. Last year I had ice coming out of the main pipe from the well. They put it level in the camp(duh). On the main pipe is a valve like a tire would have and some other adapter that has a thread. Can either one be used to blow the lines out. I was told they were for adding air to my captive air water tank. I was thinking on using one of the small compressor for tires,etc. on to the valve. Am I asking for trouble here. I really only have to blow the main line back out to the well since there's a drainage adapter buried in the ground to get rid of water in the lines. Dave M

10-11-2007, 03:38 PM	#2
Rattlesnake Guy Senior Member Join Date: Sep 2004 Posts: 1,254 Thanks: 423 Thanked 366 Times in 175 Posts	Dave, The expansion tank has a rubber bladder which divides it into a water side and air side. The air compresses as the water pressure increases. You can not blow out the lines by adding more air to this valve. It would only increase the air pressure on that side of the bladder. You can add the air at any point but generally it is done at a high point. Also be careful as wells and pumps have check valves that will prevent the water from being simply blown out. I have one next to the pump and at the end of the inlet pipe in the lake. This is required to keep the water that is pressurized from simply returning when the pump shuts off.