This is actually a commercial facility, but there seem to be knowledgeable people on this NG so here goes:
Water pressure raises and lowers in a lab near the end of a long plumbing run (200+ feet). For the most part it doesn't cause a big problem, but there are 2 model trimmers with 1/4 supply connectors that won't function properly with the pressure shift. Typically the pressure drops, staff or students adjust the valve to compensate, then water pressure increases causing leaks and even hoses to pop off their connectors. It's an old building, about 50 years, and has had numerous remodels over the years, not all them of good. One could simply throw money at the problem, resizing supply lines and install pressure regulators and hammer resistors, but we don't plan on being at the facility more than a year.
Is there an inexpensive yet reasonably effective fix?
Thank you for your opinions and if this question should be addressed to a different newsgroup please let me know.
LR