Shower Update Part 2
Some may have seen my other thread but this is just a copy/cleanup with some updates I recently made.
The tank. Approx 25 gallons.
The tank is built from aluminum with various fittings place throughout - clean out, mounting area, inlets, outlets, and fittings for a electric heater. Missing are the gussets which were welded on later after dry fitting the tank.
After welding the gussets I mocked up a plate that would hold the pump and relay for the electric heaters. The relay was needed as the heaters are rated at 12v 500Watts each and I used two of them so I could bring water from 75F to 115F within 20 minutes.
Relay and pump mounted
Dual heaters wired with MIL-W-22759/16 wire
Pump, relay, power wires, delphi weatherproof plug
Temperature Probe
I picked up a digital thermostat from amazon:
https://www.amazon.com/gp/product/B019I3YCFS The thermostat will be wired to control the temperature of the water by triggering the relay that controls the two heating elements. The probe is attached to a stainless steel washer so that it can measure the temp at the bottom of the tank.
Water pickup w/ slight bend to pick up water at the bottom of the tank
All wired and hoses mounted
Tank mounted to frame using stock threaded holes
Part 3 - 1 year update
https://www.amazon.com/gp/product/B00HTWP59S
https://www.amazon.com/gp/product/B01B7OYCBK
https://www.amazon.com/gp/product/B00Y831RM0
https://www.amazon.com/gp/product/B0737LDS4L
https://www.amazon.com/Blue-Sea-Systems-1841-electrical/dp/B0753J7S1W
https://www.mcmaster.com/#9349k33/=1dswdo4
After living with this thing for a year I noticed there was a few things needing some improvement which were:
1) No water level gauge which caused Flint Michigan water crisis like anxiety
2) The $15 thermostat failed every 2-3 months causing readouts over 250F which makes my 4runner a certified steam engine.
To fix the water level issue I ordered CPWR Guage along with a KUS water level sensor (links above). The thermostat I went with the Blue Seas 1841 unit as well as a tiny temp sensor module so I could monitor water temperature from the rear of the 4runner.
Water level sensor installed and two holes drilled for the Blue Seas temp sensors. The black foam is insulation.
Left shitty sensor vs Blue Seas sensor
Hacked up the trim where the 12v power and USB input goes. Looks ugly but the Blue Seas thermostat is huge!
Drew up and 3D printed a new facia to house the thermostat, dual battery switch, and a new USB high power plug
New center stack layout
Blue Seas smaller temp display. Had to essentially tear apart to rear just to install this
New rear power/info display
Still clean inside after a year with minimal mineral buildup
With these items addressed the tank setup is pretty much perfect barring any issues with the Blue Seas systems. The thermostat is much nicer than my previous one and the display is great. It's capable of having 3 additional temperature readouts but I'm unsure what else I would want to monitor. The rear temp readout will likely be my favorite upgrade for this setup since it'll allow me to monitor temps whenever I hang out in the rear of the 4runner.