Hypertufa is a strong material but without all the weight of your traditional concrete. It's durable and doesn't require any maintenance or sealing throughout the seasons. Perfect right? The even better news is that it's extra easy to make. also follow the link and make pots
instructions for making your own hypertufa trough planter (or fountain, in this case). Been wanting to try this for years. "Hypertufa" is basically ement, moss, and sand or perlite molded in something. Looks great faux-aged with yogurt!
As an initial step, when back pain suddenly strikes, try to relax both your back and your mind; stretching exercises can help reduce sciatic pain. http://fitness.mercola.com/sites/fitness/archive/2015/09/04/exercise-sciatica-back-pain.aspx