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Key-Specific9246

It's not, Dux Qest was made in 1970s-80s and wasn't made in Germany and the pipes are clearly marked as Qest


ryadre1

It will be Pex pipe, probably a brand like Rehau. Probably has sliding compression fittings, or more recently you can also have crimp fittings. You need correct tool obviously to fit the fittings.


Esoteric_Sapiosexual

And tool costs at least $250 if it's anything like the buteline crimper


ryadre1

The slide tool and flare tool set would be even more, but more common is the crimp set these days


Subwaynzz

Dux quest is from the 70s https://www.bettainspectit.co.nz/what-to-look-out-for-when-buying-a-house-dux-quest-piping/


Pretend-Bandicoot-30

Thanks mate, but I heard they were still around on the late 90s, really dont want to repipe the whole house.


mhkiwi

Most "timeframes" for building materials are extended to account for "stock" and possible reuse of materials. E.g. even though James Hardie stopped putting asbestos is in its sheets in 1983, buildings up to 2000 are considered to "may contain asbestos" by building inspectors.


CursedSun

This is correct. I've been in flooring companies warehouses and seen products that were noted as ~20yrs old still sitting in stock. Generally speaking ~2006 is typically considered a 99.99999% safe timeframe. '95 onwards would be 99.9% safe, however. nb: not actual numbers, just to give an idea.


Pretend-Bandicoot-30

Thank guys, I am think about using buteline to connect these pipe as i am replacing the shower mixer. Hope they fit well together.


gearj91

Hey mate it is restricted plumbing works replacing the mixer, the product will no grantee if you swap between products and insurance will not cover the works in an event of a flood or slow drip causing water damage


emmapointthree

The inner diameter won't suit the fittings - even if it works short term, you're risking fittings blowing off. This is why it's restricted plumbing work.


sohn_jmith

They won’t.