In all cases, the correct choice of the Taco pump must first determine its operating parameters – flow and pressure.
Required water flow rate is determined based on the total needs of all water points of the object based on the probability of their simultaneous application. To calculate the water consumption, you can use the following figures: a wash basin – approximately 60 l / h, the toilet tank – 83 l / h, kitchen sink or shower – up to 500 l / h, the bath – 300 l / h, a sauna or bath – about 1000 liters / h.
To determine the required pressure summarize the depth of the dynamic water pressure (low level at which it will stand in the intensive pumping), height from ground level to the location of the remote user, the stock at a loss of pressure in the pipes and stored in 0,5-1 atm let the water flowed, but not dripping, and the pressure required to operate the plumbing. In particular, the water treatment system creates pressure loss of about 2 atm (or 20 meters high column of water), shower with hydromassage – 4-5 atm, the additional pressure of 0,5-1,5 bar demand water heaters, washing machine, etc. This calculation is very approximate, because the system is influenced by features of the well, and the material and the PEX tubing diameter, and length to the consumers, relative position, mode of consumption, etc. Given that the shower obviously requires more pressure than other consumers, it better equip the individual pump with increased pressure. This will reduce the design pressure in the rest of the water and provide a more stable operation of the pump.
Naturally, the opening and closing valves will cause sharp fluctuations in pressure and flow of water in the water system. Therefore, the pump supplying the control unit “to pressure” or “expenditure”. The first is the replacement of the water tower – built-in diaphragm accumulator tank, filled with water under pressure, and when he almost emptied, the pump is turned on again, and fills it full. The second is a well-functioning system pump control (“Press Control”) and provides the delivery of such quantity of water, which is now necessary to the consumer. The advantage of blocks – compactness and low cost. Lack – accelerated wear the Taco pump because of frequent on / off.