SGkent
Thank You
1st post here. Hi Y'all.
Planning to install an expansion tank to cold water supply / hot water heater this weekend. At some future time the tank might need to be swapped out if it were to fail. I am not sure I can get enough torque on the tank to screw it in tightly or unscrew it by holding the fitting with a wrench and trying to turn the tank by hand. Didn't want to build a big strap wrench or get into future cutting and soldering to remove it although that is always a simple solution. I read up on coupling unions and it seems like DIY folks have trouble getting them to seal up so this seemed like a possible solution but I don't know if it is acceptable in the world of plumbing.
Here is the proposed solution: 3/4 line from cold supply to 3/4 female NPT [disconnect point] 3/4 male NPT with a short extension to the coupling that screws onto the tank. I would think I can get a good seal between the two couplings, and wrenches on them solid enough to make and break them as needed. Will that work or should I just build it and plan on cutting the copper if some day it has to be exchanged.
Planning to install an expansion tank to cold water supply / hot water heater this weekend. At some future time the tank might need to be swapped out if it were to fail. I am not sure I can get enough torque on the tank to screw it in tightly or unscrew it by holding the fitting with a wrench and trying to turn the tank by hand. Didn't want to build a big strap wrench or get into future cutting and soldering to remove it although that is always a simple solution. I read up on coupling unions and it seems like DIY folks have trouble getting them to seal up so this seemed like a possible solution but I don't know if it is acceptable in the world of plumbing.
Here is the proposed solution: 3/4 line from cold supply to 3/4 female NPT [disconnect point] 3/4 male NPT with a short extension to the coupling that screws onto the tank. I would think I can get a good seal between the two couplings, and wrenches on them solid enough to make and break them as needed. Will that work or should I just build it and plan on cutting the copper if some day it has to be exchanged.
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