ERPS (Electronic Rust Prevention System)

[Tazzie]

Hi All, I have a forty foot steel Yacht and I,m exploring the idea of fitting ERPS (Electronic rust Prevention System) to assist with the control of rust.
I have used one of these systems on a car before with what I considered to be reasonable success in harsh conditions. My concern about fitting it to the boat is that because the system pulses a negative low voltage charge between the steel and the coating (as explained to me by a sales rep), is this likely to set up some sort of a cathodic reaction that would be detrimental to the boat, as the boat is sitting in salt water all of the time. In all my research , I've found these systems fitted to Cars , heavy machinery, steel structures and boat trailers bot nothing on actual boats. The manufacturers insist that any structure fitted with this system be painted as the charge runs between the steel and the coating. If anyone has had experience with one of these systems on a steel boat , feedback wold be welcome

Regards Tazzie

[CShutt972]

I'm interested in installing some rust protection, but I don't wanna go with the dealer's offer - it's really overpriced. If I go to an independent local guy, am I at risk of voiding my warranty?

[hpeer]

So, IIRC in setting up a catholic protection system you will be sacrificing something. Makes sense, to protect the steel you sacrifice something else. In a Paige system we have zincs or galvanizing (zinc coating). In the system you are looking at, what is being sacraficed?