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  1. marchem

    Portable charger options

    I’ve read the articles about using automotive chargers on a sailboat, and understand why they are not a good choice. But I’m trying to figure out a solution for the boat I race on, which has no AC wiring. Are there any portable chargers that would be good for this application? Fairly simple DC...
  2. marchem

    Water tank access

    I'm working on installing a tank sensor system for the fresh and black water tanks, using a Level Guard SensaTank Marine 100 (Tank Level Monitor » Trionic Corp.). Access to the waste tank was pretty easy, but the fresh water is not so simple. It looks like I'll need to empty the tank, remove...
  3. marchem

    Fuel hose size

    Going to replace some of the fuel hoses on our M25XPB. The manual says the hose is 5/16” ID, at least at the engine filter. I’m too lazy to pull one off to check (and make a big diesel mess). Anybody done that and remember what size hose they used? Thanks!
  4. marchem

    Techniques for cleaning engine

    I’ve seen some pictures here of some very clean engines. I recently replaced the raw water pump on our M25XPB (Catalina 310), and apparently didn’t get the gasket seated properly, so it leaked a fair amount of oil. On top of that one of the hose clamps ended up scraping on the drive belt, and...
  5. marchem

    Extending temperature sensor cable on Sterling battery charger

    Sterling Power 50A battery charger. I'm using the temperature sensor, but the cable isn't long enough to reach. So I added a phone coupler and extension cable. Problem is that the coupler doesn't always make a good connection, and the charger thinks the battery is quite cold, and outputs a...
  6. marchem

    Mast Gates

    I know a few C310 owners have gotten mast gates from Tom Luque at mastgates.com. I've been talking with him and he says that the slides on my mainsail (Bainbridge Allslip A108) won't work with his mast gates, and will snag. Wondering if others have the same slides and found mast gates that...
  7. marchem

    Smart Switch bilge pump install

    The Water Witch bilge switch on our boat has failed. I’m going to replace it with an Aqualarm Smart Switch. Wondering if anyone here has done that, and included the alarm and panel light that come with it? If so, where did you mount them and how did you run the wiring for it? Thanks!
  8. marchem

    Head mirror

    Any thoughts on where to get a replacement mirror for the head? Ours is starting to corrode and I've been asked to get a new one. It's the older version, that drops down, not the newer two piece slider. Catalina Direct doesn't seem to carry them. Haven't called Catalina Yachts yet. Here's a...
  9. marchem

    Ultrasonic speed transducer?

    Anyone with experience with an ultrasonic speed transducer? I know they're expensive, but I'm tired of pulling ours for cleaning all the time. I've got Raymarine ST60 displays, and an e7D MFD, so an N2K sensor would work, like the Airmar UST800, since it fits the existing housing, as well as...
  10. marchem

    Leaving hot water heater turned on (AC)

    I didn’t find anything about this with a quick search: are there any issues with leaving the AC power for the water heater turned on when the boat is only being used weekly or so? Would the hot water cause the anode to wear more quickly, or stuff to grow in the tank or lines and produce stinky...
  11. marchem

    Ignore this accidental post. Leaving hot water heater turned on (AC)

    I didn’t find anything about this with a quick search: are there any issues with leaving the AC power for the water heater turned on when the boat is only being used weekly or so? Would the hot water cause the anode to wear more quickly, or stuff to grow in the tank or lines and produce stinky...
  12. marchem

    Battery watering system

    Finally installed the battery watering system for my 4 GC6 batteries. I had to trim the tubes between the three caps, but no big deal. Thought a lot about how to run the supply and connections between the batteries, but decided it probably didn’t matter that much.
  13. marchem

    Changing antifreeze

    One project I still haven’t gotten to after three + years is changing the antifreeze. I’ve read about it on this forum, but I’m not clear on the best way to drain as much as possible, without most of it ending up in the bilge. Any tips for doing this as neatly as possible? Thanks!
  14. marchem

    12V panel indicator light

    There have been a few threads about replacing the 12V indicator light on the breaker panel. We replaced ours a while back with the CD version and it burned out, again. I found an LED version on Amazon and installed it today. Works fine, and should hopefully last a very long time. Not a real...
  15. marchem

    Water pump fittings

    The N202M-16 water pump on my 25XPBC engine is starting to leak. I've ordered a new pump, a kit to rebuild the old one (keep as a spare, #11691), and two gaskets (just in case, #298485). The current fittings are looking a little corroded and I'm thinking of replacing them at the same time. I...
  16. marchem

    Cutting a depth transducer cable

    I'm looking to add a depth transducer to my Raymarine e7D MFD, to get a graphical depth display. Currently I've got a P19 connected to an ST-60 display, so I only get a numerical depth value. I'm pretty certain the plug for the new transducer (I'm thinking either a P319 or P79 in-hull) will...
  17. marchem

    Furling line cleat

    There's an old (closed) post here about adding a furling line cleat to the stern pulpit: https://forums.sailboatowners.com/index.php?threads/furling-line-cleat.132022/ I'm thinking of doing that and was wondering if any one who has done it has problems with the furling line getting in the way...
  18. marchem

    Chargers and lug issues

    As part of upgrading the battery wiring in my Catalina 310 I increased the battery charger wire size to #2. I first connected it to a 30A Promariner Pronautic charger and discovered that a #2 heavy duty lug would not fit on the charger positive stud-it ran into the power transistors on the...
  19. marchem

    Elbow for 1-1/2” Trident 147 hose

    I replaced the manual bilge pump hose in our boat with 1-1/2”ID Trident 147. It was a real battle getting it through several very tight spots, and I wasn’t able to run it directly into the bilge, but will need to use an elbow to get there. Problem is that it’s impossible to get it over the...
  20. marchem

    3/8” lugs on 5/16” battery posts?

    It turns out that the GC2 batteries I bought at Costco have 5/16” posts on both the positive and negative, rather than 3/8” on the positive and 5/16”on the negative. Since I bought FTZ heavy duty lugs assuming 3/8” posts, I've got too many 3/8” lugs and not enough 5/16”lugs, and not enough time...