automatic water change drainage question

[Dorado]

I'm looking for plumbers or anyone with plumbing experience to sign off on my idea to create an automated sump drainage system for quicker water changes. My washer/dryer is located in the garage on the other side of the wall that my tank will be located. A couple feet below the washing machine outlet box is a 2" clean-out. I plan on running a 1/2" PVC from the sump into the clean-out. I want to have the option of siphoning the display tank or just turning on a pump located in the sump if I'm

feeling lazy, which can all change with the turn of a couple ball valves. I'm just worried about the possibility of clogs or sewer gas contamination. I've attached a drawing of my idea, let me know if there is anything you would add or change.

 

[Ron Reefman]

I don't think dumping tank water there shouldn't be any different than your washing machine dumping it's water down there.

 

[Dorado]

I guess I was more worried about the possibility of sewer gases or bacteria somehow finding their way back to the tank

 

[Don Lidtke]

I guess I was more worried about the possibility of sewer gases or bacteria somehow finding their way back to the tank

If the drain is installed correctly there should be a water trap to keep sewer gas from entering the house/tank. Since you are dumping water into the drain the trap should never run dry.

 

[Brewski262]

I don't think dumping tank water there shouldn't be any different than your washing machine dumping it's water down there.

I agree. Maybe try to avoid any in wall connections/fittings for any future leaks or problems

 

[Brewski262]

This is your air lock, as long as you continue to use this drain, water will prevent any gases from entering your house

 

[laverda]

You don't want to go to the clean out. Just dump it into the washing machine drain. If you go to the clean out you may get water coming out there when the washing machine is running and they are usually on the other side of the air lock, so fumes are a possibility.