Drip by the stopcock: why Teflon tape won't fix it
Teflon tape only masks the drip at the stopcock. The real fix is a half-inch O-ring or redoing the fitting. Here's the trick.
English · Original discussion in Spanish · Published
Is your pipe dripping next to the stopcock and Teflon tape won't stop it? That's the classic sign of a disintegrated rubber washer that has stopped sealing the thread. Teflon tape helps for a while, but it's not the solution: it's designed for threads, not to replace a rubber ring.
The alternative that fixes it without dismantling half the plumbing is a flat half-inch O-ring, the kind that cost pennies at any hardware store. If it won't fit, the trick is to cut two washers and fit them with the cuts offset so one covers the other. Often, that makes the drip vanish for good.
Be careful when the pipe is embedded in mortar: if it's a buried compression fitting, any repair will just be a patch. That kind of joint should remain accessible and, ideally, with a pressure regulator. Anyone who has been through this ends up chiselling the wall and redoing the joint, because rushing only postpones the next leak.
Next time a plumber charges you 180 euros to tighten a nut, remember the part cost 20 cents. And that Teflon tape isn't meant for that.
The alternative that fixes it without dismantling half the plumbing is a flat half-inch O-ring, the kind that cost pennies at any hardware store. If it won't fit, the trick is to cut two washers and fit them with the cuts offset so one covers the other. Often, that makes the drip vanish for good.
Be careful when the pipe is embedded in mortar: if it's a buried compression fitting, any repair will just be a patch. That kind of joint should remain accessible and, ideally, with a pressure regulator. Anyone who has been through this ends up chiselling the wall and redoing the joint, because rushing only postpones the next leak.
Next time a plumber charges you 180 euros to tighten a nut, remember the part cost 20 cents. And that Teflon tape isn't meant for that.
Also available in: Deutsch
Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (24 replies).
More summaries
-
Wet wipes clog pipes and drain wallets in Spain
Users spend up to 800 wet wipes monthly for hygiene, causing pipe blockages. Is the bidet a better alternative?
-
Mixed changing rooms in gyms: what we know and what we don't
Several users claim that a mixed changing room is the area with lockers and benches, while changing and showering take place in individual cubicles.
-
5W-30 vs. 0W-20 / 0W-16 vs. 0W-8
Are 0W-8, 0W-16 and 0W-20 oils a threat to your engine? The debate between manufacturers, workshops and drivers over ultra-thin viscosities and engine protection r
-
Budget running shoes: own-brand or Nike?
Running shoes for under 70 euros: Aldi own-brand or Nike on sale? We look at quality, price and the consumer's dilemma.
-
€99 to fill up: driver's complaint exposes fuel tax burden
A driver in Spain pays €99 for diesel and claims more than half of it is tax. The debate over fuel taxation and mobility heats up.
-
Storing fuel for years: is it actually possible?
Storing diesel for 5 years is possible if you keep bacteria and moisture at bay. Petrol evaporates. Is stockpiling worth it? Data and real-life experiences.