Bath traps traditionally only have a 20mm deep seal. This is because there is very little chance of induced siphonage (and hence loss of trap seal) because the flat bottom of the bath ensures that water flows out through the waste at a much slower rate than in a basin or sink.This bath trap however has a 50mm deep seal for added protection. The outlet size is 40mm.This trap is manufactured by FloPlast, one of the UKandrsquo;s leading suppliers of above and below ground drainage systems. It can be connected to most UK manufacturersandrsquo; push fit and solvent weld waste pipes.To connect the trap, always start at the top with the connection to the waste fitting. If the installation is particularly tight we suggest assembling all connections loosely before finally tightening all nuts once the trap is in position.First you should ensure that the O ring is correctly seated on its lug inside the top trap nut. Push the lug inside the waste fitting and tighten the nut by hand. Do not overtig