Most P30s were supplied with MONEL tanks and monel tanks usually last forever. Hopefully when she was repowered they left in the original tank. However they also used a lot of copper - so check the tank vent
line for corrosion, etc.
The tank vent exits at the stern, is covered with a teeny stainless mini-clam shell with a spark arrestor screen just under the clamshell. Mud dauber wasps really love to build nests in the vent opening, totally blocking it. With the vent blocked the (full) tank system can ''weep'' at the fill connections (rubber) if the tank over pressurizes by changing ambient temperatures.
One the BIGGEST faults (OK by standards when built) that can lead to
fuel leakage is: the rubber flex connection between the
fuel filter and the engine ... Pearson used an asbestos armored multi-walled rubber hose which can develop pin holes between the lumens of the multi walled hose and if a pin hole develops the asbestos covering will hide such leakage ..... Advise the surveyor to specifically use his NOSE on the flex connector between the filter set and the engine. Also check the usual copper tubes from the tank, etc. for cracks in the flare connections, replace them with stainless tubes when you can - safer.
Incidentally, Pearson used Iroko instead of teak on P30s. Iroko is a VERY beautiful wood but nothing will stick to it for very long in exterior applications .... not
varnish, not cetol, not armada, not Bristol finish, not honey teak ..... nothing but a highly resinated and thick/multicoat oil finish will adhere. Dont leave Iroko uncoated as it will erode severely and very quickly.
Hey, enjoy your Pearson 30.... will bring you many many smiles. There is a fleet of Pearson 30s that race out of Annapolis, these folks eat, sleep and dream of P30s. Consider to introduce yourself even if you dont plan on racing.