We have the double water tank, but this has only one filling opening.
We found that if you fill both tanks
fully, the boat becomes notably slower especially when close-hauled. So we only fill both tanks
when we know that it will be difficult to get decent water. For instance when we went to St Petersburg last summer, the water there is reputedly very bad.
If you use only one tank, you might want to:
- Use one tank, then the other, then the first one again
- To close one with a bit of water and chlore in it, or other desinfectant (for instance wodka when going from Russia
, where alcohol is really very expensive)
For this you need a second filler port. I mounted one, see attached picture. Ouch it hurts to make a hole in your hull!
- Order the identical filling port from Plastimo
- When you receive it, try to find well-fitting A4 stainless steel
screws. This was difficult, the angle of the screw head was different.
- Buy 75 cm's of 1.5 inch reinforced hose, preferably a supple on since it has to make 2 sharp bends.
- Buy 4 stainless steel
hose clamps of suitable diameter
- Borrow a professional drill from the shop where you purchase
the filling port. If I remember correctly it's 57 mm
- Drill a hole exactly symmetrical to the starboard filling port.
- Drill the 3 holes for mounting
- Clean the gelcoat
with acetone. Apply white sealant
of your preference to the filling port. Sikaflex is not UV-resistant and will become yellow on the edges. Silicone does not hold very well.
- Screw in the filling port. Remove excess kit when half dry with a plastic knife.
- The second tank has a filling pipe which is closed at the top. With a really sharp knife, cut through the filling pipe about 8 mm below the top. This takes some patience.
- Heat the filling hose in hot water to bend it twice
- Fit the hose with the hose clamp.
- There is a plastic key on the market (locally 8 euro) for opening . closing the filling cap. Prevents over-tightening and damaging of the aluminium filling caps by over-enthousiastic people.
Nice thing is you'll now have a perfectly round sample of your hull's sandwich construction.