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I'm not a plumber. I can't get my head round plastic waste pipe dimensions - there's so many of them? I get that 32 mm is 1.25" and 40 mm is 1.5" (internal diameters) but what's the difference between "solvent weld" and "compression" as far as compatibility is concerned?
For example, on a 32 mm P trap, the inlet is 32 mm and has a "compression" fitting - I get that.
Will a 32 mm "solvent weld" pipe fit that "compression" joint?
Do I have to buy a 32 mm pipe that is not "solvent weld" - what would that be anyway?
Maybe I'm not making self clear, so if anyone can explain the mysteries of waste pipe sizes and comparable joints I'd really appreciate it. In other words "what fits what and what doesn't".
For example, on a 32 mm P trap, the inlet is 32 mm and has a "compression" fitting - I get that.
Will a 32 mm "solvent weld" pipe fit that "compression" joint?
Do I have to buy a 32 mm pipe that is not "solvent weld" - what would that be anyway?
Maybe I'm not making self clear, so if anyone can explain the mysteries of waste pipe sizes and comparable joints I'd really appreciate it. In other words "what fits what and what doesn't".