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.
My toilet makes a loud whining, vibrating and droning noise. My toilet makes a loud whining, vibrating and droning noise about 3 to 5 seconds after flushing. The toilet itself flushes fine and works ok. I can't seem to pinpoint the noise. Submitted: 7 years ago. Category: Plumbing.