Tubs and slow air leaks

Deeps

I have a very slow leak on one of my tubs. It takes around 6 hours to noticeably reduce in pressure and around 24 hours to deflate completely. With the cost of new tubs I was thinking of putting some sealant gel in and see if that cures the problem. Is this a good or bad idea? If its a good idea which sealant is best? Any other advice other than the obvious of replacing the tub?

Many thanks

cafe de colombia

Back in the day, I'd repair my tubs using standard patches and re-sew the outers using Wenzel Thread and a thimble (linen thread for leatherwork that can be purchased on e bay for about £1.50).