Booster Pump / Low Pressure:
Minimum input pressure is 40 to 50 psi for a standard RO system. For customers using well water, we recommend RO585P. http://filterdirect.com/product_info.php?cPath=22&products_id=33 Drinking Water System with Booster Pump.
The calcium built up in the shower and toilet can be removed by installing a Softner at the water main. But it can be costly.
The calcium built up in the shower and toilet can be removed by installing a Softner at the water main. But it can be costly.