The Seaward manual, available on the web, indicate that the anodes are magnesium and are designed to deal with bad drinking water. They don't describe what that means.
but if Seaward doesn't have a spot for one
I found an installation manual on the web, but not an operations / maintenance manual.
RTFM, Rob (Slapping head)!!Seaward DOES have a spot for one. It simply, as mentioned before, replaces the drain valve.
Probably largely depends on the usage when connected to shore power. Just heating from the engine should have no effect.Being ignorant, how often must the anode be replaced?
are you in freshwaterFor what its worth, my zinc anode in my HX grew... Broke off trying to get it out.
Fortunately I was taking the HX out anyway to repair the hose neck that I crushed trying to get an engine hose off it when I was yanking my transmission... I think it may have been picking up material from my dissolving Magnesium shaft anodes
I have checked with the supplier of anodes and they don't make and don't have plans to make a magnesium pencil anode in magnesium for HX
Peter
C310 #147
For Pete's Sake
OYS
Yes Should have mentioned thatare you in freshwater
actually zinc is a better choice in the overall for brackish and salt ..depending on if you are closer to the salt than the fresh end of the brackishActually I think Al is recommended for salt and brackish water
Are you sure about the zinc anode? Every Seaward water heater manual I've seen says to not use zinc, only magnesium.Ok, new Seaward F1100 installed, good plywood under platform to screw into. The engine hoses were long enough (slack up by the engine) to install to the starboard side with tang inserted in the slot, but the fresh water lines needed extending.
This 10" shorter HWH now provides room for direct access to the auto pilot rudder transducer if needed.
The manual indicated that the anode is attached to the drain valve and to use Zinc only, no Magnesium.
The HWH magnesium anode is available from Catalina Direct, West Marine, and Defender, plus a bunch of other distirbutors I'm sure (assuming you've got a Seaward HWH). Amazingly CD has the best price. I'm guessing they also have anodes for the HX unit.HI peter_ms:
Since I'm looking for more than one anode, could you direct me to your source. I also need an anode for may Heat Xchanger and Hot Water Heater. Doing a once over for all the Anodes on the boat. Not sure what the previous owner did so I'm covering may bases.
Cheers
2 OLD PIRATES