Acrylic windows can last forever. Hydrosight still recommends continuous inspection during the window's service life, so that in particular the seating and sealing can be inspected. The rules for inspection vary by the sort of the window's certification, its application and age. In general a 3-5 year inspection interval is recommended.
Hydrosight will perform inspection on request. Windows with a damaged surface do not necessarily need to be replaced - they can be repaired. Related service work as sanding and polishing of scratches and flaws can be organized according to need.
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