corretto montaggio prese a mare

[kavokcinque]

Suitable for underwater use, TruDesign range of Skin Fittings are certified by the International Marine Certification Institute (IMCI) and Bureau VERITAS to ISO 9093-2. They also comply with ABYC H-27 500Lb standard when used in conjunction with the TruDesign ABYC collar. Designed and made in New Zealand, the Skin Fitting body and nut are moulded from a glass-reinforced nylon composite. High strength, high-modulus glass fibres provide dramatic strength, stiffness, toughness and dimensional stability. These properties allow a significant weight reduction over metallic fittings.
TruDesign Skin Fittings eliminate the corrosion and electrical bonding problems associated with metallic fittings. When used in below waterline applications, a Ball Valve should be directly connected for safety and compliance to relevant marine standards. Sembra che montate non direttamente sul passascafo non siano "compliance". Cmq sicuramente nel tempo il sintetico non si indebolisce per corrosione.
Sei sicuro di non poter fare qualche modifica e far meglio del progetto originale evidentemente non compliance ? Metti qualche foto della situazione attuale.