Personally I would not have gone with your "recess drilled hole" for a number of reasons.

However a drain hole is an escape for excess water which is better than nothing.

This water ingress managment is quite a complex and challenging issue.

I have an ultimate solution. We love Chile, especially the dry Atacama region. Lowest rain fall on earth. Really suits the 'B'. Even if water did get inside it would be totally dry within 48 hours (including underneath the mats).

No I didn't like drilling the floor but it was cheaper than moving to Chile!!!

spiderboy said:

No I didn't like drilling the floor but it was cheaper than moving to Chile!!!

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True!

So that hole safely guides the water out of the car totally? No collecting in the chassis?

RightGuard said:

True!

So that hole safely guides the water out of the car totally? No collecting in the chassis?

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I have not lifted the floor covering but you know I had litres of water just sitting behind the seats. It now drains away. The mats will not get sodden and the floor should dry out. It is better to prevent water ingress but if you can't you need to get it out of there quick as possible.

water will soak foam. floor is made of 90% of foam and 10% that plastic top you see. it's suicide for chassis. stick inside some pipe and be sure it's leading through chassis... also seal top side with silicone.

i removed floor, because it was totally ruined. and see how water is dripping out foam.

F4usT said:

i removed floor, because it was totally ruined. and see how water is dripping out foam.

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Those mats are really bad

What did you put back? Your own mats or did you replave with alternative material?

Also am I right in that your picture of the "drain" flukes/holes are actually on the raised ridge and not in the well?

previous driver was Gabriela from Italy... and probalby HHH syndrome. (high heel hole)... once when you create small hole, it will spread a bit every time you step on floor.

i just put rubber mats from supermarket for now. i was thinking to create a mold from fieberglass, cover it with liquid rubber and put some drain channals out off car... and then to put on some nice fabric floor mats... just idea. not sure what else to do...

btw: those are dents in cassis, it just looks like it's raised.

Many moons ago ano Uno of mine leaked all the time after crash repairs. In the end I removed the plastic backed carpets, stripped out all the water absorbing underlay and replaced it with 10mm "closed cell" neoprene rubber. Good for sound, good for comport and does not absorb water. Also easy to work with. Not that cheap but with holes drilled in the floor pan and additional antirust paint applied I never had to worry about water ingress again.

I hope I don't have to do the same with our 'B'. Only just put it back together again after the last "dry out". I'm hoping my plastic membranes will divert the "B" post water onto the top of the rear mats and not underneath them. Will put some of those meaa water absorbing sponges in the mat recess wells.

Have also tried bonding the short hood seals I spoke of onto the hood.

Who thing is a little bit of a lottery.

Last time I had to remove the seats and lift and dry out the floor lining was about a year ago. This time I doubt there was more than 100 or 200ml of water in total including absorbed water.

Fingers crossed.

Thanks Faust I'll certainly fit two tubes. Good advice!