Pontoon Floats.

[ExSurveyor]

Here is one for the technicality minded.

This is at the marina in Kent.

A middle section of a long run of the floating pontoon has started to accumulate rainwater via fixing holes on the top  surface.

The floats are about 1.5m x1m and are about 12 years old and are in good condition. The void is filled with blocks of polystyrene and the whole float is sealed.

The floats have to remain in situ although the decking can be lifted.

I have a theory,  what would you do to remove the water that has ingressed,  before sealing the offending holes.

 

[Polly]

Drill a drain hole lower down-on a still day. Seal that and the others after draining what you can?

Assuming it’s floating high, enlarge one top hole and siphon out as much as possible before sealing ?

As for siphon but duck tape a narrow tube into a cheap bilge hand pump and get busy pumping?

I bet someone will be along shortly with a sensible plan!

[annv]

Suck it out with diaphragm shower pump John

[imtamping2]

Drill through poly blocks until you reach bottom then insert a Waste oil removal pump tube add to pump and away you go....

Oh and dont forget to seal up the new whole after ...lol

[Polly]

We had a Swift 18 with double skin foam filled. There was never water ingress on ours but others reported that they had used foam building filler to rectify the problem. I suppose  it was possible but sounds unlikely to work.

[ExSurveyor]

I was thinking along the lines of a tank pump out.

Seal a tank adaptor in the top with a small vent hole  and use a pond vacuum.

Any thoughts.

 

[Polly]

Worth a try as long as you can get a good seal and the filling hasn't deteriorated to the point where it could clog a pump.