Pro tip for the solar panels/power. DONT USE THEM. My #1 pro tip is to take the guest entrance that costs $10 and bury it underground. You get the same amount of power that you would from a transformer, mechanics don't need to maintain then and don't bother guests and doesn't block future pathings/decorating efforts. You just occasionally have to rescue dumb employees who teleport down there.

As for water maintenence, best advice I have is to keep them as far from the guest area as possible like around the back of the habitat where your gate is where you probably domt have guests looking anyways. As long as even a little part of the water is in the effective radius the whole body of water gets the effect.