On 28 May 2006 11:48:23 -0700, "violinconcerto"
wrote:

I am new to the group.

I am thinking about installing a filter in the storage space below the
tank. I have not yet decided on what kind of filters: wet/dry or
others. But I was wondering that, if the pump stops working, whether
all the water in the tank will be syphoned down into the storage space
and eventually onto the floor?

My only experience is an external pump hanging onto the side of the
tank.

My air pump has a one way valve which is supposed to stop any water
from syphoning off. Also my air pump is a couple of feet above the
tank so syphoning shouldn't be a problem.

I will appreciate any advice.

I have always used gravity feed filters so cannot say anything from
personal experience. However, why not put the filter tank above the
tank and pump the tank water up. I have a 29 gallon that uses such a
technique. I guess you are lacking for space between the tank and the
wall.

I wonder if the water pump will have a built in one way valve? My
motorhome water supply pump has such a valve, then again I imagine
they are available commercially if the pump doesn't come with one.

dick