If the bathroom made the budget repair is usually pipe water supply and drainage are not hidden in the wall. Sticking tubes interfere neatly installed sinks, so you have new furniture "cut" .Mebel bath is made of particle board (chipboard-cooker). The material itself is very much afraid of water. Water intrusion in the open, unprotected areas leads to the absorption of moisture chips. What causes the swelling of the material and damage the furniture. Further the mold which spoils the atmosphere in the flat.
During installation the client sink in the bathroom, remember your audience and decided to capture the process of applying technological protection after cutting holes in the furniture, to put it simply - holes for pipes.
To cut the holes using a jigsaw and a drill with a pen. With the proper use of the tool the process is fun and neat. Sam chipboard furniture manufacturer protected against splashes, but if intentionally cut "hole" is left bare the inner part of the "boards" which absorbs moisture. You guessed it must be protected. To do this, use a silicone sealant.
Carved edge sealant liberally grease and rub with your finger. If such protection is not doing the furniture in wet areas quickly deteriorates. Especially if the condensate is formed abundantly on pipes.
A bathroom in which I put the sink has a high humidity. Basically this is a problem in "Khrushchev". Has poor ventilation and lack of heating facilities in the summer by circulating hot water.
Attention! When you install in your house a new kitchen unit pay attention to the work of the installers. Do they lubricate the edge of countertops after tapping Shell. Otherwise the worktop can swell!
I hope I have conveyed to you useful information if this is the case, then let mark plumbing "Like"! Thanks.