I found two interesting links. The first is a great explanation about how hydrostatic testing is done. The second is about how the VIP+ is done on aluminum tanks. These take the mystery out of what is done to our tanks.
Hydro - http://www.deep-six.com/page37.htm
VIP+ - http://www.deep-six.com/page113.htm
Hope you find this useful.
Regards,
Flea
Hydro - http://www.deep-six.com/page37.htm
VIP+ - http://www.deep-six.com/page113.htm
Hope you find this useful.
Regards,
Flea