I'm having second thoughts about using Ender IO. On the one hand, the reservoir has a decent but not infinite speed (1 bucket per second or 50 L/t) without having to worry about it running dry (and I can use a GT wrench to enable the auto output). On the other, the default recipe requires fused quartz, which GT does not automatically provide an alternate processing recipe for - unless I write a MineTweaker/CraftTweaker script (which I did for now), I have to use the Ender IO alloy smelter to make it. I hesitate to build the Ender IO alloy smelter considering that several of the Ender IO alloys require an EBF to make via GT machines, so it would feel like a cheat.
There are a few alternatives I'm already aware of:
1. Buildcraft pump (about 4.95 L/t or 99 L/s using a redstone engine, which by my calculations is not quite fast enough to reliably keep up with a large bronze boiler, but two of them in non-connected water sources might work; about 62.7 L/t if powered by a GregTech LV gas turbine, which would be more than enough to keep up with hydrogen production for a fusion reactor)
2. "Infinite Water Source" from Pressure Pipes - I've looked at the source, and using the pump block from this mod, I think it can push the water at up to maxint liters per tick, only limited by the pipe, tank, machine, etc. it is pushing into.
3. IC2 pump (at least if I don't enable "finite water", default speed seems to be 1 bucket per second at 1 EU/t)
Could some of you please suggest other mods I can investigate for this? I would somewhat prefer a mod without redundant/conflicting machines, and being able to generate the water without needing to supply power would be nice, as would the existence of a 1.12 version of the mod (in case I decide to switch to GT 5.10 if/when the rewrite is ready)