Don't set the pressure much greater than 60 psi. Not only does high pressure cause leaks, it wastes water and can actually be dangerous.

Water pressure regulatoradjustment screw

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Water pressure regulatoradjustment clockwise

If you experience a sudden reduction in water pressure, it's a good idea to check with the water company. There may be a temporary problem with the municipal system, and if you adjust your valve and the municipal problem is corrected, your pressure will be too high.

If you didn't have a pressure-reducing valve installed between the municipal water system and your house, the water pressure would break all your water lines and appliances. The pressure in a municipal system can be as much as 200 psi to service fire hydrants and high-rise buildings, but the pressure in a typical residence is usually around 50 psi. The step-down regulator near your water meter or just outside the house is usually factory-set. If you need to adjust it higher or lower, the procedure is simple, but you may need a water pressure meter if there isn't one there already.