If that is so, and people ARE using uncertificated boilers on a public lake that is also used by a club, then I don't blame the club or the council for banning them.
An uncertificated boiler is an un insured boiler, and if anything did go wrong on a lake used by a club, I'm damn sure that the recipient of the injury would sue the council and the club that sails on the lake for not taking adequate control.
It's the usual case though of the socially inept and inconsiderate minority spoiling it for the majority.
I searched high and low for a tester of my twin engined Imara, knowing full well that I would never steam it, but always able too..cost me ten quid to join a club who had insursance................so DON'T BLAME THE CLUB........they are only looking after their own and members interests.....blame the individuals who don't tow the line and asusual are being anti social to the rest of us.
after all you wouldn't want your kids or grand kids maiming scarring or even being killed by an exploding boiler or a flying nitro.........I know I wouldn't!!!!