One of the most annoying problems with kitchen sink drain pipes is that they only drain when the garbage disposal is on. You may have noticed this while doing dishes or noticed standing water in your sink even after you’ve turned off the faucet and flipped up the stopper (or pulled out a plug).
We’ll take a look at why this happens, how to fix it, and what to do if it never goes away.
The first thing we need to understand about plumbing systems is that all drains are connected by underground piping which allows them to be filled from either direction. This means that when someone flushes their toilet upstairs, any sinks downstairs will fill up as well because there is nowhere for the water to go. This is a really good thing when it comes to preventing sewage backups.
However, this also means that the sink fills up with water from below as well which can cause problems if you’re trying to drain your sink and there’s still some standing water in the pipes. This is because since both drains are connected at all times, things like hair get wrapped around one of them and eventually become so thick they clog the pipe making it impossible for anything else to pass through.
The solution is pretty simple: just run any faucet or use your garbage disposal for short periods before shutting off the main valves that control everything coming into/out of the sink. Doing so will dislodge whatever was blocking the other side and allow your plumbing system do its thing.
You can also use a sink plunger or our toilet auger to clear any hair buildup in the pipes of your sink, though this is best done by someone who knows what they’re doing.”
Why Your Sink Only Drains When the Garbage Disposal Is On: you might not know it but if your garbage disposal and kitchen faucet are both on at the same time then water will only be able to drain once one shuts off. However, this means that standing water will accumulate in the sink as well which can cause problems if trying to drain when there’s still some leftover water inside the pipe because since drains are connected together clogs happen easily. The solution is simple enough- just turn the main valve for either flow on or off.
The water will start to drain once the other one is also turned on or off and you’ll soon be able to wash your dishes, which might not have been possible before.”
– sink drains when garbage disposals are on problems that can happen with them at home solutions for this problem what happens if both the kitchen faucet and disposal are running as well how do you fix it? why does a sink only drain when the garbage disposal is on a solution: turn either flow valve on or off the water will start draining right away because they’re connected together
Sink drains when the garbage disposal is on how does it work?
garbage disposals use a small turbine that spins against the kitchen scrap to grind them up and dissolve the particles in water. The spinning action of blades creates enough force to eject what’s inside, now liquefied, out through an opening at the bottom of the unit called a drain pipe.”
The draining process happens because there are two pieces of plumbing sitting side by side – one for washing dishes and another for disposing things down into this large central tank underneath your house,” he says. “It sets up perfect conditions for clogs which happen easily to us all from time to time.”
“If you turn off either flow valve without turning off both valves then you’re going to have a sink that doesn’t drain when the garbage disposal is on,” he says.
“If you turn off both valves and it still does not work then most likely, there’s a clog in your main drainage pipe.”
A quick fix for this would be to use an auger or plumbers snake device which can help dislodge things by turning them back up the tube before they come out a kitchen sink opening.
Sink only drains when a garbage disposal is on
The way a kitchen sink’s plumbing works can be complicated, but one thing that most people know about their sinks is that they drain better if you turn off the faucet and then use your garbage disposal.
The dishwasher feeds water into this same channel from below and does not have any effect on how well or poorly your sink will drain. If it seems like dishes are piling up in your dishwasher after washing them because of poor drainage, there might be a clog further down the tube.