Monolith water features

Monolith water features - the pros and cons

Not all monolith features are as tall as these, they can be as big or small as you like. but you should bear in mind the following before you choose one.

As these are heavy they will need support, the smaller ones could be knocked over or pulled over out of curiosity, so how do you mount one?

The best idea is to put suitable bricks in your sump and secure the monolith to the bricks with a suitable adhesive, since most will have  decorative material (I will say gravel) the gravel will need a mesh to stop it falling into the sump. The mesh can be supported on the same bricks the monoliths are on, but additional support should also be used to take the weight of the gravel.

You should also make a "trap door" in the mesh to allow for access to the pump. The pump should also have a head height of slightly more than the height of your chosen monolith, the ones shown are between 3 and 6 feet (aprox) so a small pump will not be suitable, since you can turn a big pump down , but you can not turn a small pump up.

Some will say put the base of the monolith in the base of the sump and fill the whole lot with gravel to give support.  That is fine in theory but you will need access to the pump which you can't as its now buried under gravel, (when you take the pump out the remaining gravel will fall to where the pump was)  and you have also reduced the available volume for water. It is possible to put upturned flower pots in the sump to make space for water and also less gravel but this is not really a good idea and you have to find pots the correct height.

The choice is yours