Alternative Air Source – New Guidelines

In Europe divers should be aware that there have been changes to European Standard EN250. This Standard concerns the manufacture of underwater breathing apparatus. The changes concern how alternate air sources are used. As equipment manufactured under the requirements of the previous version of the standard will be around for many years, the implentation of … Continue reading Alternative Air Source – New Guidelines

Regulator Servicing – 1st stage Disassembly

A starting point is the need to service some regulators. The ones shown are all Apeks regulators. (Actually there is also a domiflow oxygen valve on the right). These regulators are typical of diaphragm first stages. Other manufacturers will look very different but on the whole the principle of operation is the same and the … Continue reading Regulator Servicing – 1st stage Disassembly