<p>The school has 10 Science rooms with incorrectly installed plumbing. The side sinks should be able to be isolated via an electric control panel with the teachers sink being left on.&nbsp;</p>

<p>However, in all classrooms, this is not the case. In no particular formation, some randomly isolate (including the teachers sink) while others remain working. This is due to the taps using the wrong hot/cold supplies.&nbsp;</p>

<p>Each classroom has 4 pipes running to them from the classrooms below. The reason for 4 pipes are:</p>

<p>Cold mains&nbsp;</p>

<p>Controllable Cold Mains</p>

<p>Hot supply</p>

<p>Hot return.&nbsp;</p>

<p>&nbsp;</p>

<p>We can solve the problem by identifying individually each sink. Running correct supply to each tap. Because the &lsquo;hot&rsquo; has a return pipe, this will make it impossible isolate the hot pipe via the electric isolation switch.&nbsp;<br />
<br />
This is not a straight forward job and could come with some complications. Due of the nature of the job, we will have to use plastic pipe and fittings. This is because there are fitted units which makes it nigh on impossible to use lengths of copper pipe.&nbsp;</p>

<p>&nbsp;</p>

<p>I will follow this up with a quote.&nbsp;</p>

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