Uniseal Fitting Instructions
Only one tool is required to achieve a watertight seal - a holesaw.
Uniseal® Fitting Instructions
| 1 |
Cut a hole to the correct size using a holesaw. A wee tip here - run your holesaw as slowly as is possible, the bigger the holesaw the slower you want it revolving. Don't burn out the holesaw or melt your plastic vessel. |
| 2 |
Ensure there is no swarf around the hole. A fine sandpaper will remove excess. |
| 3 |
Insert the Uniseal® into the hole from the same direction that you intend to insert the pipe. |
| 4 |
Ensure that your pipe has a clean cut end. Chamfering the end of the pipe helps when it comes to insertion. |
| 5 |
Lubricate the outside of the end of the pipe with soap/washing up liquid and then push the pipe through the wide side of the Uniseal® and into the tank. On larger pipes silicone lubricant instead of soap applied to the pipe and Uniseal® further helps ease insertion. |
| 6 |
The pipe can be moved backwards and forwards to achieve the correct position. |
| 7 |
Job done! |
Uniseal® Installation Tips
Some larger diameter pipes may require more force to insert them through a Uniseal®.
Ensure those pipes have a good chamfer on the end to be inserted.
Silicon pipe lubricant spray will also create less friction between the pipe and the Uniseal®.
Rocking the pipe gently from side to side when applying pressure will also aid insertion.
Use a block of wood to push the pipe through the Uniseal®.
Just prior to inserting the Uniseal® heat it by immersing in hot water for a minute.
For particularly stubborn installations use a ratchet strap around the vessel and the end of the pipe you would like to insert. Slowly ratchet the pipe through the Uniseal, tap the free end of the pipe with a dead blow hammer on a piece of wood.
There are a few hints and tips on the following videos which some people use to insert their Uniseals®.
YouTube Uniseal® Installation Videos
When to use a Uniseal Vs a Bulkhead
How to Install a Uniseal Fitting
How to use Uniseals with thin walled pipe in the Aquaponic build
Aquaponic Uniseal installation How-to
UniSeal 1.5 inch hole in 5 Gallon Bucket
Standard Pipe Sizes
Pipes come in different sizes. The outside diameter of your pipe can be checked out from this website www.pipestock.com/ who sell different classes (pressure rating) of pipe in different materials. Don't get overly hung up on your pipe size unless you intend to pressurise your tank or vessel, Uniseals® have a little tolerance of around 2mm on larger diameter pipes. The main criteria is that your pipe fits tightly through the Uniseal®.
Uniseal fitting example piece. This blue plastic circle is from a DIY blue barrel filter system on a fish pond and is an example of how to fit a Uniseal. The pipe would of course be much longer and the plastic an actual part of the barrel. Check out the chamfer in the second last photo.
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