Latest rendition of the brewmobile, with sparge float installed on the manifold. On the left is the rack I built for my grain mill. The new 300k BTU burner.... wicked... bottom view of the new burner before putting on the brewmobile The new custom stainless false bottom. I bought a 4' x 8' sheet of the perforated ptainless from www.mcnichols.com. This will have to be fastened to the bottom because it is nearly impossible to keep it from being sprung, I am thinking that the 1/2" pipe thread in the center of the Mash Tun will be a good thing to mount to, maybe utilize a stainless nipple, spring, and cap to apply the force to keep it flat on the bottom... Close up view of the sparge float, it is connected to the relay on the left in the waterproof control box. The relay on the right is for the original pump, both have ON-OFF-AUTO positions on the switches (above the relays) for manual and automatic operation of the pumps. The Lauter Grant is controlled by a latching feature wired into the 2nd pole on the relay that turns the pump on when the upper float switch goes on, but keeps pumping until the lower float switch opens and breaks the circuit. Both pumps have normal 120v 3-prong plugs on them and plug into a duplex outlet on the underside of the control box. On the lower right, you will see a 1/2" stainless solenoid valve, both motors have these wired to them, so the valves open when the motors are powered, keeping the mash from backflowing into the lauter gant or HLT hopefully these valves flow enough and we do not have to get mechanically operated ball valves.. The grain mill stand made from 1" square steel tube, using Chris' old motor. I had to flip the side plates inside out to place teh driven roller in the back so that the mill would turn the correct direction, I used a 12" pully from grainger and a belt I had laying around. the motor is mounted in a fixed position with4 5/16 screws and wingnuts, the mill is mounted in slots to adjust belt tension and tightened with 4 1/4-20 screws that thread into the existing holes on the grain mill, I took care tightening the screws to avoid putting stress on the side plates and adding friction on the brass bushings that the rollers ride on. To out-do Chris and his 5-gllon grain bin, (I just *had* to...) , I put on a 15 gallon one made from a industrial-size containter of simpel green that I cut the top off of. I added a single gang outlet box with standard light switch between the motor and mill. To connect to the mill, I drilled a 1.5" hole in the lowest part of the bottom. I cut the thread and flange from the 3-liter bottle that came with the mill and sanded it smooth, then screwed it into the mill body through the hole in the grain bin. It is difficult to see because it is clear. To aid in heating the HLT to temps above the 170 deg limit of the thermostat, I made a HLT booster burner mount that is adjustable via a carriage bolt and wingnut. another view of the HLT booster burner. Chris grain mill makes grinding 2 bags of grain a snap! Chris and I examining the grain crush from his new motor he got for his mill. end view of a right-angled stainless fitting I made originally for the Lauter Grant, but later wanted a longer one, so this was used on the oxygenator Long right angle (almost) fittings for the bottom of the lauter grant. The last drawing of the brewmobile before adding solenoid valves, float switches to turn the lauter grant pump on, and a separate pump for sparge. New and improved plumbing to reduce air pockets and allow mounting of the valve manifold to the frame of the brewmobile. New and improved plumbing to reduce air pockets and allow mounting of the valve manifold to the frame of the brewmobile. the water-tight electrical connectors for the float switches... someday we will get a waterproof control box... The post that will hold our HLT and the top of the Lauter Grant in place Underside of the new Lauter Grant showing the inlet and outlet ports. also, below the right thermometer is a heat shield in progress to keep the sight tube from melting. Mr Sparky! This oughtta save a bunch of time looking for the grill lighter and then resorting to newspaper and a match... and no one will ask to borrow it, will they! Placement of the new Lauter Grant, rewiring of the single float relay, and soldering and shrink-tubing Chris' wire nutted pump cord that scared people... the super cool (super heat?) coil, we went up from 50' of 3/8" to 20' of 5/8" due to flow restrictions