We have a communal shower block in our cricket club changing rooms. There are 4 shower heads which each have a mixer valve and are fed by 28mm hot and cold from a header tank and boiler. Water pressure is low due to being miles from anywhere.
For years the showers have caused us issues, whenever one mixer is altered another shower goes cold or hot.
In order to avoid this I have installed a 22mm thermostatic mixing valve and feed premisxed water to the showers through the old hot 28mm pipe. I have blanked off the cold side of the mixers and turned them all to max hot.
The result is perfect temperature but if I turn on more than two of the showers they pulse and if all 4 are on its just a dribble.
Please could anyone advise what causes this pulse and what i could do to stop it. Is it because the 22mm valve is feeding into a 28mm pipe, or do i need a pump, or do I need to take out the mixers.
Any advice is greatly appreciated and will keep 22 cricketers happy every weekend.
For years the showers have caused us issues, whenever one mixer is altered another shower goes cold or hot.
In order to avoid this I have installed a 22mm thermostatic mixing valve and feed premisxed water to the showers through the old hot 28mm pipe. I have blanked off the cold side of the mixers and turned them all to max hot.
The result is perfect temperature but if I turn on more than two of the showers they pulse and if all 4 are on its just a dribble.
Please could anyone advise what causes this pulse and what i could do to stop it. Is it because the 22mm valve is feeding into a 28mm pipe, or do i need a pump, or do I need to take out the mixers.
Any advice is greatly appreciated and will keep 22 cricketers happy every weekend.