This details septic tank operation and the emptying process and aswers often asked technical queries by customers of Rob Beale Limited. For further information on our services please visit www.robbeale.co.uk
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@robbealelimited11 жыл бұрын
Thanks! If by scum layer you are referring to the crust then this may or may not be removed depending on how thick and/or solid it is. Most commonly a portion would be left behind as this is beneficial in helping the bacterial processes to continue. This tank was made from brick and concrete.