How to replace O-ring:

1.  Lift and remove O-rings from their grooves using the O-ring removal tool.
2. Clean the O-ring grooves using a dampened, lint-free cotton cloth.
3. Apply thin film of SeaLife Silicone O-ring lube (item SL9807) to the new O-rings.
   Use fingertips to evenly spread the lube. Don’t stretch the O-rings.
4. Install new, lubed O-rings in their groove being careful not to twist the O-rings. Install the main O-ring seal with flatside facing inwards.
5. Check that O-rings are clean and evenly seated in their groove.