Cost wise the difference is negligible - was planning getting the pipe in the morning and running it through tomorrow whilst the replacement window is being fitted. New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging . I have a Grundfos macerator, a replacement for an old unit which conked out recently, but never worked properly because, I think of a siphoning issue.

Some cookies are essential to the functioning of this site whereas others are non-essential but help us provide a better browsing experience. The first payment will be due at time of purchase and subsequent payments due every month on the same date. The new one hasn't got an airhole like that, so I'm thinking I either need to enlarge the pipe bore at the top of the run to stop this, ot fit an anti siphon valve.These are products that couriers generally don't accept due to either their weight or dimensions (usually over 1m in any dimension or over 30kg in weight). So - given that I have a 32mm incoming anyway (and very good pressure), should I run 32mm or go down to 28mm?

After it's pumped the water away as it should, leaving some in the macerator, there's a couple of seconds pause and all the water rushes out of the thing by itself, leaving it empty and airlocked. It happened with the old one too, and it eventually died from running too long all the time, but there was an airhole on the outlet on that which you could enlarge to stop siphoning, which helped remedy it.

If you are a bit wary of working in 28mm copper then you can always use the Pegler Tectite fittings which look neat and are demountable if you need to do so. Increase from 22mm to 32mm discharge outlet Note: this will not fit UK standard solvent weld pipe work. While 32mm MDPE fittings are generally intended for single-use connections, some fittings may allow for disassembly and repositioning if necessary.

Finance is provided by PayPal Credit (a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH). If you choose to pay using PayPal Pay in 3, please remember to spend responsibly – sometimes, delaying or splitting up payments might not always be the best option. If noise issue materialise, then presumably I can do something to reduce the flow to the supply anyway? Polypipe reducer with 32 mm push-fit connections is made of black rubber and incorporates BioCote anti-microbial technology. overflow size which is the same as ¾" imperial copper, which you can adapt to a 22mm compression fitting with an adapting olive.

MDPE compression fittings are designed, manufactured and tested under a stringent ISO 9001:2000 quality control system to meet the requirements of ISO 14236. Aquaflow 22mm solvent waste overflow system in PVC-U with an extensive range of fittings to meet all installation requirements.

The pipework is 22mm copper, going up thru the ceiling into the loft, along about 5 or 6 metres, then down the outside wall into the main waste.Browse the literature library to find all product related literature including technical information, specification documents, datasheets, installation guides and much more. None of the blue MDPE would be exposed to sunlight - it will run through the service void downstairs and up through the posijoists (there is a cupboard in the right palce that will allow a suitable bend rather than elbow) and pop up near the UVC/manifolds. If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag.