Remove existing washroom cubicles
* units were removed carefully being mindful not to cause damage to the newly decorated walls
* water services were capped off and made safe, and sewage connections were blocked and disinfected
Remove existing vinyl floor and concrete screed
* we removed the layers of vinyl flooring and disposed of same
* next was removal of the subfloor screed which was foul smelling from the sewage leaks
* muck was disposed of
Install new self levelled latex and anti slip safety vinyl flooring
* latex self levelling compound applied to the sub floor
* anti slip vinyl laid to floor and fixed with trowel on chemical resin
Install new toilet drainage
* the layout required an additional cubicle to the floor space. This required the existing drainage to be modified. All sewage pipes were modified to accommodate the new spacing of the cubicles
Modify the plumbing to prevent back flow siphonage
* a risk assessment of the fluid category risk was carried out to address the water regulations issues regarding back flow siphonage.* the washroom was rated with a fluid 5 category risk, which is the highest risk of fluid contamination.
* installation of the plumbing supplies for the toilet cisterns and wash hand basins were carried out in accordance with the technical specifications required to prevent back flow contamination between the sewage services and the local water supply.
* toilet cisterns were fitted with a Type AD – Air gap with injector installed to connected water supply with an additional AFL air gap isolator valve.