Anyone.?
OK Gazza - here goes - don't put it in the lid as it will always have to be full or it's burnt element time. Also heat rises so its top half warm bottom half cold (where the outlet is) because the outlet is down there.
I have put elements (3kw) in a 200L (Trailer) and a 400L (Van) and they work fine - all toasty now waiting for me to go out now and start like I did yesterday.
Use the search engine on here and a thread will come up with piccy's.
Go to TOOLSTATION or SCREWFIX - buy an element (short 11" type) with thermostat included. >£20. Ask them for an "Immersion spanner" It's like a big box spanner 3" plus across with a turning bar. > £20.
Buy a 6" adjustable hole cutter for wood and plastic to go on a drill > £20
I bought the flange - not necessary - just make sure you cut the hole (so that the bottom of the hole is just above the outlet to the pump) a bit small and wind in the element cutting its own thread - you can use some sealant if you like.
Wind it back out and vacuum out all the plastic "cuttings" that may have fallen inside the tank.
If you haven't got a filter - get one so that the bit of plastic "cutting" you miss doesn't get sucked into the pump!
Buy a timer so it clicks on and off at the right time - for my 400L it's on at 2am off at 6am - for my 200L it's on at 6.05 and off at 8.00.
Make sure you don't have anything else on the spur (except say a light or a battery charger) at the same time you switch on - eg oil filled rad.