A slow draining toilet

We were called out to a customer in Cathcart in the Southside of Glasgow because they had a slow draining toilet.


They had tried everything they could themselves (including buying a toilet specific plunger) but with now luck.

As always, we do not charge a call out fee and we turned up at the address exactly on the time that the customer had requested.  We did a few test flushes to inspect the problem and quickly found the problem.


It was a downstairs/under the stairs toilet and the OSMA air admittance valve had stuck.  This was preventing air from getting into the system and helping the drainage of the toilet water.  It wasn’t blocking it, the water was eventually draining away, but it was still causing an issue.


We replaced the OSMA air admittance valve with a new one and carried out a series of checks to make sure that it was working a-okay.


We got the customer to check it all as well and before you know it – job done.


The customer had worried that they had a significant drainage problem but it turned out to be a simple fix that as a one of Glasgow’s most recommended plumbers, we could spot quickly and fix easily.

If you think you have a broken toilet or a problem with the flush of your toilet then call on JSL Plumbing today.  We don’t charge a call out fee, all of our work is priced before we begin and we guarantee all of our work.

Call us today for all your plumbing services in Glasgow: 0141 406 1658

  • Quick resolution of problem and good communication.
  • Very friendly throughout the process. Clear information given and very thorough. I will be using them again!
  • JSL Plumbing & Heating replaced a kitchen and a bathroom tap and fixed a toilet where the cistern was leaking into the bowl. He was personable and professional, and provided advice on which replacement taps we might want to get for the bathroom. He provided updates on his progress throughout, and the pricing was reasonable. We have used JSL before and would happily do so again. Have also recommended this company to others.
  • Job completed to our satisfaction. Bathroom and en-suite left tidy and work completed in the timescale agreed and charged as per the quote. Good quality fittings used. Would certainly use JSL Plumbing Services again in future.
  • Jim assessed the leak, which required repair and offered an honest appraisal. He was on time, polite and carried out the work as planned. I wouldn't hesitate to recommend him and would use for a larger installation in the future.
  • Had a bent radiator pipe I needed replacing and as I'd already called them out thought I'd get some bath taps fitted. I'd been putting the job off as it was in a really awkward tight place and knew it wouldn't be pleasant. The plumber was happy to help and it didn't cost me as much as I expected for the time and fiddly nature of the job.
  • Very good service with work done quickly after contacting company.

JSL Plumbing in Glasgow

A reliable, professional and trusting plumber in Glasgow and the surrounding areas. For quotations, emergency call outs and commercial contracts please call our head office on 0141 406 1658.

For all drainage services in and around Glasgow, visit www.jsl-drainage.com

For all heating services in and around Glasgow, visit www.jsl-heating.com