Ever since we adopted improved fuel management methods, weve enjoyed a decade of no carburetor maintenance-not on the twin 9.9 hp engines that ran our catamaran, not on the dinghy kicker, and not on our trimaran. Not on any of our chainsaw or blower motors. Given the quarterly ritual wed enjoyed before, its been wonderful.
This year, President Trump rescinded the summer ban on E15 sales. Previously, E15 could not be sold between June 15th and September 1st because the extra ethanol increased vapor pressure and increased smog formation. As of this writing, distribution of E15 is limited outside of corn belt areas, and negotiations continue between the EPA, which opposes higher ethanol blend levels, and the agribusiness lobby.
The leading cause of death of metal tanks, on land and at sea, is corrosion. Industry standards for fuel tank farms require internal inspections starting at 15 years, and as a licensed API tank inspector, our Tech Editor Drew Frye knows well why these interior inspections are required.
Different filter manufacturers can chose different rating systems that rely on different statistical values for filtration. The higher the percentage at a given rating, the more effective. Interestingly, the effective rating changes over time, as particles clog up the media, making the holes smaller.
Diesel engines have evolved into incredibly reliable power sources. Change the oil, mind the charging system and batteries, and most importantly, always give them clean fuel. First there is diesel bug. Bacteria and fungus (not algae-that is incorrect nomenclature) can infect the tank, feeding on the diesel and producing volumes of tank-, line-, and filter-clogging biomass with the consistency of snot. It can be prevented by the regular use of biocides (see PS August 2013), but…
In the June 2018 article Air Conditioning for Sailboats, we compared several options for 12-volt air conditioning on boats, and more recently we looked at the power requirements for running our air conditioner without being tethered to shorepower, see Air Conditioning at Anchor, PS June 2019). Since that article was published, we were told about the new i-Line VSD Series of compact air conditioners from Velair-an Italian company that is part of the Ultraflex Group.
The human body runs on electricity and if you overload the nervous system with an external field, everything goes haywire. Every year several people die because they go swimming near a dock, a wiring fault creates an electric field in the water, and their muscles freeze. It is called Electric Shock Drowning (ESD).
So, a couple of years back, you acquired a good old boat at a pretty good price-thanks to the market-but now youre wondering how many coats of bottom paint it has. And what kind? Youve put on a few coats of ablative antifouling since youve owned the boat. It has adhered well and has done its job. But each year, the bottom looks rougher and rougher-with big recesses where paint has flaked off. You sweated out some extra prep-work this season, and thought you had a nice, durable subsurface for painting, but each pass of the roller pulls up more paint. Whats going on here?