I have had serious thoughts about making my own ballast system/dive unit I have read everything I have found on the various systems. I have listened to the odd producers of systems who say don't make your own cos it won't work, buy mine its the best thing since the flushing toilet.
My problem is 'dosh' being a resident of a foreign land living on a pension thats dependant on how the Euro fairs against the Pound ie its up and down like a whores draws we have to be careful on our spend.
So tell us, please, what advice can/would you impart on the various 'units' and build or buy. I believe I have a pretty good skill base to build I just need to source 'the bits' so thats perhaps the other thing what bits?
I would like a system that is as near to the 'proper thing' as possible ie ballast tank(s) that flood on request to dive and are blown to surface. Yes I know, just and idiosyncratic thing I have being an ex submariner!! (Anorak I hear you say!). BUT I'll listen to you well established submarine modellers and bow, to your experienced, knowledge.
So please help me resolve my dilemma.
Perhaps I should add here that I am fitting out a Sheerline type VII.