McAlpine T28M-NRV Multifit in-Line Non-Return Valve - White

Excellent product did the job

fitting is simple

Useful

Moved into a house where the bathroom basin and bath waste were T'd into the same waste pipe heading to the soil stack.Letting the basin drain would push smelly air back through the bath trap. This was easy to fit and works well. No more bubbling up through the bath plughole. If you're a DIYer and not sure of the correct positioning of the rings/washers then check out dereton33 videos on you tube where he demonstrates fitting this same product.

Resonable quality , prefer the solvent style to compression joint but this does the job. Leave the cap that hold the valve in place as you can loose the valve down the pipe.

Excellent piece of kit. My idiot builder did not put a water trap into the downstairs bathroom after our rebuild. We had an awful sewer smell going straight out of the shower. I broke out the pipe boxing and as there was no room to fit a u bend, I installed ithis kit in about twenty minutes. Worked brilliantly and no more sewer smell since. One word of caution, when cleaning drain pipe, the flap is easy to lose down the pipe if you miss seat it.

did the job

When your water blade waterfall is switched off, the last thing you want to hear is the back flow loud gurgle of the water returning to its sump, so instead you fit a 40mm non-return valve in the sump to prevent this. That is what it was bought for, and that is what it is doing daily, and superbly too. The only minor criticism, and only because of my use of it in an illegitimate way, is the noticeable difference in flow pressure caused by the circumference wall of the NRV, but well within tolerance, but to the designers eye, very noticeable. All the same, it does what it says on the tin and at a highly competitive price too - what’s not to like?

Fungerar utmärkt

Appena installata.il prodotto sembra di buona qualità, le plastiche non sono male.x il momento fa il suo lavoro.consiglio l'acquisto.io l'ho installata in quanto nel mio condominio capita che si otturi il tubo di scarico è io sono al piano terra.ciao

Muy bien, fácil instalación y el tamaño es de 40mm - perfecto para evitar bichitos no invitados por el desagüe en la cocina

Sehr gut

tres bien