I have an indoor fountain that is made of copper. I would like to inhibit bateria and algae growth in the water, but don’t want to corrode the copper (or the ABS pump or PVC fittings). Does anyone have any suggestions?

We have a little fountain (200 l) which pumps the water permanently through three stones. I have to brush the stones twice the week otherwise they get green and look terrible. Has anyone an idea how I can prevent that the stones get green?

ok, i am making a water fountain for my ecology class (its an end of the year project for the teacher) anywho i will be using atleast and most likly 2 pumps to transfer water to the next stage
the stages will be
evaporation: water in an aluminum tray being pumped up to a make shift cloud
condensation: this will be a single cloud that will contain a metal fliter that will give the illusion of rain when water passes through it (please note i have a question about this part later also)
and then run off: a bucket that contains water provided by the “rain” stage will be pumped up into a make shift mountain which will flow over the edge down the side of the mountain looking like a river flowing down. this water/stream will lead back into the aluminum tray to start the cycle again.
now heres my main question(s):
i was wondering what would be the best WATERPROOF material to use inorder to make the outer layer of the mountain? i am using foam board instilation for th inner layer of the mountain to make the shape
question 2
what would be the best way to go about making he rain cloud i have aready decided to have it be suspended via plastic/metal pipe holding it up? im really more interested on how to setup the filter then actually making the cload but any tips will be appreciated
*please note that this is an art project so it will be givin a name and pictures will most likly taken for evidence
ty for all contributions

Hi I’m doing a project and I’ve to make a water motor that can pump water up to minimum of 3 feet,the principle should have a rotating motor and should be small almost like a motor in small fountains at home.Can anyone help me??

Dad and I are making a fountain-pond. The water at center is about 2 feet to 3 feet deep. We are looking to find a pump that will blast the water about 25-30 feet (or more if possible) in the air with only about 4 to 5 feet of pvc tubing attached. We have the tubing available in anything from 1″ to 2 1/2″ so adapting to the pump hole is not an issue. All of the pumps we have found that looked like they would work say “max head 35-40 feet.” We get excited, and think it means they shoot 35 to 40 feet in the air. That is not the case. I guess it means if you had a piece of pvc pipe that was 35 to 40 feet long the water would reach up there and come out. But that is most definitely not what were looking for. That would just look ridiculous. We want a minimal amount of pipe coming out of the water and a huge blast. Anyone who knows where such a pump exists would be awesome. I appreciate it.

  
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