Uniseals are a great way to get a good, tight seal around a pipe that runs through a tank.
- Uniseal Size - 3" / 75mm
- Designed for Pipe type - Stormwater
- Pipe inner diameter - 3" / 76mm (+/- 1mm / 0.032")
- Pipe outer diamater - 3.5" / 89mm (+/- 1.5mm / 0.062")
- Hole Saw Size needed for this Uniseal - 4" / 101mm
As Uniseals are designed to fit tightly around the pipe in the hole, they can be challenging to install. To make it easier, cut some short slots into the end of the pipe, so you can make the leading end of the pipe a bit narrower (see picture).
Also, slather the pipe with some kind of water-soluble, food-safe lubricant, like dishwashing liquid. This helps the pipe slide through the Uniseal. If fitted correctly, you should have no leaks around the pipe.