[StirCrazy]

Originally Posted by reefburnaby

Stainless comes in many grades. The stainless used in screw heads on Mags and shafts in powerheads are usually no. 316. 316 is more resistant to saltwater environments and they tend to last a couple of years if they are always submerged in low oxgen areas. If they are exposed to air and saltwater...they will rust very quickly. Eventually, all stainless will corrode in saltwater -- it is just a matter of how long.

I agree with Bard, it is a DIY project that may cost more the real McCoy.

- Victor.

Um did my name change to Bard? hehe

ya 316 is what they are and they start to rust after 1 month in our tanks (I have two comfermations of this now I should have taken pics yesterday they would have ilastrated this perfectly) the problem is our tanks are "High in O2 and they are salt water. as Victor stated not a good mix for stainless. No Aluminum will last forever as long is it doesent rub against anything but it also might leach off undesiriable elements to the water so it is no good. during my search for a part for a DIY chiller I found Titaniums is the best metal we can use because it is totaly inert.. it just burns something crazy if you get it hot enuf :shock:


As Delphinus stated I touched on it because I didn't want to start a pro vs con argument for gounding probes here, but I will not use them.. I feel they hide the problem as aposed to letting you know. about it. also they are designed to work in a NON GFI circut, other wise you will be resetting your breaker allthe time, so as Delphinus stated if you have it in a NON GFI circut you will never know you have a problem with one of your pumps. I do tests with a multi meter once a week to see if there is stray voltage in y tanks.

Steve