Sluice needs ability to set higher than 1

[MartyS]

I've run into a few scenarios where I have a tall reservoir next to a shorter one, and want to be able to have a sluice at the bottom of the taller one that automatically keeps the shorter one full. The way things are now I have to manually open and close the sluice because the water level needs to be kept at 4 and the highest number allowed is 1. I need the extra depth on the short one because it's the tiny map and I have a big water pump in the short reservoir and it also feeds my water crops with sluices set to 0.5.

[kaleraven]

This would be a nice feature to have, though if the tall reservoir is almost always going to be at least 4 high on water, then you can just make an extra layer of sluices at that level to automatically open into the smaller reservoir, while keeping the ones at the bottom as a backup to open in emergencies. Alternatively you can create sluices at every level from 1-4, since they're relatively cheap.

[T0urmy]

Oddly enough the maximum is not 1 but the amount of space between the top of its output and the first water-blocking surface below its output (eg: ground; metal sheet floor; top of full-blocks; bottom of dam; rounded-down whole number of the height of floodgates).

As a makeshift solution you can build 4 sluices on top of each others,
OR you could simply build a sluice at a height of 4 (maybe a second one at the bottom for safety) since no water will be transfered to your small reservoir if your tall reservoir doesn't also have its water reaching a height of 4 anyway (a sluice is NOT a pump, it's a one-way gate using no power)

But I agree with your suggestion, being able to have the maximum value above the level of the sluice would allow playing with the concept of "communicating vessels" between reservoirs.

[MartyS]

Originally posted by T0urmy:

Oddly enough the maximum is not 1 but the amount of space between the top of its output and the first water-blocking surface below its output (eg: ground; metal sheet floor

OK, I didn't know that.

This sort of makes it possible, I put a sluice at row 5 of the 20 block tall reservoir and was able to set the downstream level to 4 to keep the 5 block tall reservoir full but not overflowing. I'll just have to manually open the bottom sluices if/when the level of the tall reservoir goes below 4 so that water can be used.

Screenshot of it:
https://steamcommunity.com/sharedfiles/filedetails/?id=3285322203

Looks like manual opening would only be needed after about 11 or 12 days of drought.

I just got the stack idea, that would make it completely automatic, set each one to the level it is built at so it will open and equalize the 2 reservoirs. Don't think I'll rebuild this one again but will keep the idea in mind for other maps.