- Joined
- Nov 3, 2003
- Messages
- 51,619
Sorry. Did you get it done already?
Best place for a relay is usually wherever it's most convenient for you. Because you're going to size the wire appropriately for the load, it can go as near the battery, or as near the load as possible. Either way works as long as you size the wire according to not only the load, but the distance traveled.
Because most relays are not truly waterproof (though even cheap ones are half-way decent) I'd put it up under the hood near enough the battery or switching wire as you can, then run a good wire (14 or 12 gauge) all the way to the pump with no splices except for where you put any connectors for the pump.
And make sure to ground the pump's body to the frame real well, with a nice clean spot underneath. And make sure that the frame itself is actually part of the ground system!
If you have to, you can ground it to the body instead, but making sure the frame is well grounded can only help in other areas too whenever something is attached to it.
Paul
Best place for a relay is usually wherever it's most convenient for you. Because you're going to size the wire appropriately for the load, it can go as near the battery, or as near the load as possible. Either way works as long as you size the wire according to not only the load, but the distance traveled.
Because most relays are not truly waterproof (though even cheap ones are half-way decent) I'd put it up under the hood near enough the battery or switching wire as you can, then run a good wire (14 or 12 gauge) all the way to the pump with no splices except for where you put any connectors for the pump.
And make sure to ground the pump's body to the frame real well, with a nice clean spot underneath. And make sure that the frame itself is actually part of the ground system!
If you have to, you can ground it to the body instead, but making sure the frame is well grounded can only help in other areas too whenever something is attached to it.
Paul
