Sweating Pipes

[CEMaine]

Actually, the valve is above the pickup tube so I have to rely on vacuum to get all the water out which requires the pipe joints be sealed.

Hmmm. That kind of makes sense.

Still it seems to me that if the whole rig is under the mash bed there should not be a problem. Also, as it is suction and not pressure, the need for soldering still seems pretty slim to me.

 

[Bobby_M]

It's not really that slim. As the wort/water level drops below the topmost slip joint, the tendency to pull air is high due to the siphon being created by the outflow.

 

[JnJ]

Hmmm. That kind of makes sense.

Still it seems to me that if the whole rig is under the mash bed there should not be a problem. Also, as it is suction and not pressure, the need for soldering still seems pretty slim to me.

This is a Hot Liquid Tank, not a Mash Tun. There is no mash bed.

 

[JnJ]

It's not really that slim. As the wort/water level drops below the topmost slip joint, the tendency to pull air is high due to the siphon being created by the outflow.

Exactly, again, there is no mash, just water, so a leak at the first joint would allow the pump to pull air which is easier than water.