Hallux valgus is a common deformity of the big toe, defined as medial deflection of the first metatarsal bone along with lateral deflection of the first toe. Surgery has been shown to be b...
The influence of adverse pool water chemistry on the. vinyl was assessed through observation of changes in vinyl. colour, weight, dimensions, tensile strength and elongation. (stretching). The laboratory studies revealed that the factors most. affecting vinyl liners are high chlorine concentration, and.
Substances on Swimmers. Suntan oils and body oils can lead to liner discoloration if they aren't properly removed from the vinyl surface. Oils mix with dirt and attach to the vinyl, creating a hard, crust-like layer that's difficult to remove without using abrasive cleaners and scrubbers.