rough order of magnitude (ROM) Definition. An estimate of costs and time provided in the early stages of a project when its scope and requirements has not been fully defined. An ROM is used to reduce the uncertainty of cost outcomes for both parties when project details have yet to be identified. Use this term in a sentence.
Prior To Fitting Your Wickes Water Softener. The water softener must be installed inside a plastic water tank, this tank should then be you may hear a hissing noise as the water rushes through the valve. Once the hissing noise has stopped, open the outlet valve and run some water.
We are experiencing a problem. From time to time, there is a gurgling water sound from the boiler and a rumbling from the loft. Up in the loft, I find hot water pouring from the inverted U pipe into the Feed & Expansion tank.This continues for 5 - 15 minutes before there is a 'click' from either the boiler or the programmer (can't tell which) and the gurgling / rumbling stops instantly.e are experiencing a problem. From time to time, there is a gurgling water sound from the boiler and a rumbling from the loft. Up in the loft, I find hot water pouring from the inverted U pipe into the Feed & Expansion tank.