i buil my first little unit this weekend.it is made out of 2" pvc and holds about 400ml of water,i have put about 5/8 teaspoon of sodium hydroxyd in it.ran for about and hour ,outside temp of pipe stayed around 145 t0 150f.it doesn't seem to pull but about 3 amps.i did blow a 5 amp fuse this morning ,but i think that was from the heat of the engine compartment.put a 7.5 amp in it it gets warm to the touch but hasn't blown.the out put is ran strat into the intake before the filter.seems to have good bubles.i guess my question is would putting a air defusser like in an aqurium on the end cauese to much back persure to cause the heat to rise this high with low amp draw.thanks
marvin