too little power, for too much money

Caveat: buying and shipping have worked brilliantly. The delivery time was extremely short. There's a point.
The shower itself is unfortunately totally useless, unless one is only 50 cm tall. Neither battery nor with 12V supply, the power delivered to the pump in order to promote the water higher. At 1.60m it drips only from the shower head. Of course, the regulator was shower head to max. asked what course entirely sense Freed is the face of this power.

I'm going to try to test the pump without a filter, otherwise the part goes back tomorrow.