Use the wrench to screw the bolts, if the bolts aren't tighten then it will spew out water rising the water level! The depth will increasingly go down increasing the pressure and making it more difficult.
Very simple project for those waiting for bigger projects to come! Tbh the thumbnail needs a little work lol. Have a Tinkercad account? I have too! "The ManWith A Plan" tell me yours to be followed. (btw I'll be off of Tinkercad for a while).