Real Case from FPP Plumbing. This job started with a double sink that was completely clogged. When our plumber began to snake the drain line through one sink, the snake came out through the other one instead of going down the line.
That’s a clear sign that both sinks were connected through a Double Sanitary Tee, but there was no cleanout installed – which should always be there.
We had to open the back wall of the vanity and add a proper cleanout. Now, if this line ever clogs again, it’ll be much easier to clear it without opening the wall again.
And by the way – the P-Trap was also installed incorrectly, so we reinstalled it properly to make sure the drainage works as it should.
Another reason for frequent clogs was the AC condensate line that was tied into this drain. Condensate water carries dust, rust, and slime from the AC system, which slowly builds up and causes blockages like this one.
Now both sinks drain smoothly and fast – and the homeowner finally doesn’t have to deal with constant backups. If your sinks are slow draining or making gurgling sounds, give FPP Plumbing a call. We’ll inspect the system, find the real cause, and fix it right the first time.
On jobs like this, I always explain to customers that a “quick fix” doesn’t exist when something is installed wrong behind the wall. You either fix it properly or you’ll keep fighting the same clog every month. And honestly – 90% of the problems I fix in homes around Frisco, Plano, McKinney, and Allen come from shortcuts taken by someone else. I don’t do shortcuts. I fix it clean, I fix it right, and I make sure it doesn’t come back.
And yeah – we only use professional tools. No cheap Amazon stuff.
If you’re looking for a plumber near me, check our main Plumber page: https://fppplumbing.com
If you have an emergency, visit Emergency Plumbing Service: https://fppplumbing.com/emergency-plumbing-services/
If you need drain unclogging, go to Drain Cleaning & Unclog Service: https://fppplumbing.com/clogged-drain-cleaning-frisco-plano/
And if you want to read more real plumbing cases, visit our Blog: https://fppplumbing.com/blog/
If you want to see what tools we use, check out Milwaukee’s official website: https://www.milwaukeetool.com/
Why did the snake come out of the other sink instead of going down the drain line?
That happens when both sinks are tied together through a Double Sanitary Tee without a proper cleanout. The snake takes the path of least resistance and pops out the second sink. With a cleanout installed, the line can be cleared the right way without fighting the plumbing system.
Can an incorrectly installed P-Trap cause constant clogs?
A bad P-Trap setup slows the water, creates turbulence, and lets debris settle inside the line. In this case, the P-Trap was installed completely wrong, so we reinstalled it the right way. A proper trap keeps your sinks draining smooth and prevents those repeat clogs homeowners hate dealing with.
Does the AC condensate line really cause sink clogs?
Absolutely. AC condensate water carries dust, rust, slime, and dirt from the HVAC system. When it drains into a sink line, that buildup sticks to the pipe walls and slowly forms a blockage. That’s why drains in homes with shared AC lines clog more often – it’s not the homeowner’s fault, it’s the system design.
