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Drain, Waste and Vent System. It is all of the Drain and Waste piping and their associated vent piping
Things that can safely go down the drain include water, soap, shampoo, and toothpaste. Other items, such as food scraps, grease, oil, and chemicals should not be poured down the drain as they can cause clogs, damage the plumbing system, or contaminate the water supply.
They share the same drain and it is becoming clogged. Drain cleaner in both drains should help.
The condensate drain on the a-coil should have a trap and the trap should be vented for proper operation . The vent should rise above the top edge of the drain pan in the unit. Their should be a capped clean out before the vent.
If all that you're pumping is water, just rout it to the septic system. Ideally, this would be through a floor drain or the water softener drain or a washer drain. Sump pumps have a screen on them to prevent them from pumping out dirt and rocks.
you can't. It is a closed system. the only way to check it is to drain it. Only a mechanic should do this.
Open
There is no drain on an AC condenser it is a closed pressurised system. To drain it you have to hook up a machine that sucks the freon out.
The key word is "drain", meaning it works by gravity, so a drain value should be at the lowest point in the system. Typically there is one just past the meter. If a lawn irrigation system is a branch of the main system it should have its' own drain valve for winterizing it. You can purchase stop valves (or shutoff valves) with built-in drain or bleeder valves.
Closed
The radiator drain should be on the bottom of the radiator towards the engine. If the radiator is the one that does not have a drain then the lower hose will have to be disconnected to drain the system.
Because it will pollute our water system.
Ive never heard of draining coolant plugs except on a diesel engine . Once you drain the coolant and flush the system it should be fine
An open drain has no covers while a covered drain does.
Yes if it is stuck closed.
Hot water heat is typically a closed system, and the pressure gage is used to determine if the system is full of water. Loss of water in a closed system will create air gaps in the water flow, and the boiler is not capable of heating air. Low water level arriving back to the boiler will trigger the high-temp shut off switch, and the water will not become hot. Add water to the system and check the gage. To add water, open slightly the system drain valve (should be located in a pipe at the top of the system) and fill the system thru the inlet valve with a hose from a faucet until the spray from the open drain valve is solid. Close the drain valve system, and then close the inlet valve. Close the faucet valve and remove the hose.
The drain plug should be at the bottom of the radiator facing the engine. Some Chevys did not have a drain plug, on these models the bottom radiator hose has to be disconnected to drain the system.