Uploaded March 2023 | Updated September 2026, 3 weeks ago
This is the second part (of three) where my simple "replumb the hoses and change the impeller" project took way longer than I expected... I made a lot of mistakes, but I caught them before they became serious.
This won't be the most exciting video, for sure, but it's part of the "show everything" ethos of the channel. I hope you find it interesting or maybe even informative.
patreon.com/TheDigitalMermaid
Lady K Sailing Discord Server:
* discord.gg/MEVaWbTSKk
Channels that have Helped Me;
* @ProjectBrupeg
* @BillCarlson (Project Lightening)
* @OffGridGarageAustralia
* @LadyKSailing
* @AcornToArabella
0:00 - Intro
1:03 - Connecting the Overflow Hose to the Heat Exchanger
2:27 - Priming the Diesel System
4:35 - Changing the Sea Water Strainer
11:04 - Contemplating the Coolant Impeller
11:52 - Advice from a Friend
13:15 - Servicing the Heat Exchanger
25:38 - Coolant Overflow Container
27:16 - Lazarette Disassembly
30:12 - Coolant Impeller Replacement
34:54 - Replacing Belts
35:52 - Checking the Sea Strainer
36:34 - Finding Presents!
37:39 - Playing With Found Toys
38:10 - Making a(nother) Mistake
39:45 - Pump and Belt Reassembly
41:26 - Coolant Reservoir and Heat Exchanger Install
43:38 - Adding Coolant, Another Mistakes
48:17 - Oh Look, More Mistakes!
This is the second part (of three) where my simple "replumb the hoses and change the impeller" project took way longer than I expected... I made a lot of mistakes, but I caught them before they became serious.
This won't be the most exciting video, for sure, but it's part of the "show everything" ethos of the channel. I hope you find it interesting or maybe even informative.
patreon.com/TheDigitalMermaid
Lady K Sailing Discord Server:
* discord.gg/MEVaWbTSKk
Channels that have Helped Me;
* @ProjectBrupeg
* @BillCarlson (Project Lightening)
* @OffGridGarageAustralia
* @LadyKSailing
* @AcornToArabella
0:00 - Intro
1:03 - Connecting the Overflow Hose to the Heat Exchanger
2:27 - Priming the Diesel System
4:35 - Changing the Sea Water Strainer
11:04 - Contemplating the Coolant Impeller
11:52 - Advice from a Friend
13:15 - Servicing the Heat Exchanger
25:38 - Coolant Overflow Container
27:16 - Lazarette Disassembly
30:12 - Coolant Impeller Replacement
34:54 - Replacing Belts
35:52 - Checking the Sea Strainer
36:34 - Finding Presents!
37:39 - Playing With Found Toys
38:10 - Making a(nother) Mistake
39:45 - Pump and Belt Reassembly
41:26 - Coolant Reservoir and Heat Exchanger Install
43:38 - Adding Coolant, Another Mistakes
48:17 - Oh Look, More Mistakes!


![Ep. 103 - Replacing a Quattro With a Multiplus-II
NOTE: I say in this video Charge miles per hour. I meant to say that for each hour of charging, I want to charge at greater than 1 hour of travel. The miles per hour is times 4, assuming 4 knots travel speed.
Were back to angry pixies! In this video, I replace the old Victron Quattro 48/5000/70 for a new Multiplus-II 48/5000/70. I talk about why I switched, and what the differences are between the two models. Then we get it setup and charging the batteries again.
] Patreon:
- https://www.patreon.com/TheDigitalMermaid
] Channels that have Helped Me;
* @ProjectBrupeg
* @OffGridGarageAustralia
* @AcornToArabella
* @BillCarlson
] References;
- Multiplus-II 48|5000|48-120v Specs;
- https://www.victronenergy.com/upload/documents/Datasheet-MultiPlus-II-120V-EN.pdf
- Quattro 48|5000|48-120v Specs;
- https://www.victronenergy.com/upload/documents/Datasheet-Quattro-3-10kVA-120V-EN.pdf
- Victron Overload Source;
- https://communityarchive.victronenergy.com/questions/4454/peak-power-of-victron-inverters.html
- Victron Config Guide with Power Modes
- https://www.victronenergy.com/media/pg/MultiPlus_2kVA_120V/en/configuration.html
- Song Chuan 511HP1-1AH-F-C E01 Relay
- Note: Spec sheet reports 400v, I read 830v
- https://www.mouser.com/datasheet/2/378/2016111178754208-1862130.pdf
] Chapters
0:00 - I got a new toy!
0:51 - Why I originally got the Quattro
2:31 - Unboxing the Multiplus-II 48/5000/70
3:53 - A discussion on miles per hour recharge rate
7:39 - Weight differences
8:24 - Comparing the Quattro to the Multiplus-II
13:37 - Opening the lower panel of the Multiplus-II
14:22 - A problem with Canon passthrough power
14:47 - Taking a look inside the Multiplus-II
19:29 - Concerning marks
19:57 - Hats off to professional videographers
20:06 - Closing up the Multiplus-II
21:17 - When will the MP2 fit on the boat?
23:23 - Making space for the MP2 with Mae
26:30 - Mounting the MP2
27:37 - Missing Handles!
28:19 - Pinning the MP2 to the wall, not the cable
29:13 - Cutting grommets
30:48 - Pro diesel comments, still!
31:39 - Wiring up the Multiplus-II
33:08 - Converting the AC in line to ferrules
34:24 - Two AC outs, load shedding!
34:51 - A kitty interlude
35:55 - Back to wiring the AC side
37:49 - On to wiring the DC side
40:17 - An unexpected distraction
42:08 - Double-checking everything
44:57 - Firing up the Multiplus-II!
46:19 - Charge voltage and absorption comments
48:08 - Bringing all batteries online
49:30 - First charge!
50:19 - Cerbo touch display failure Ep. 103 - Replacing a Quattro With a Multiplus-II](https://i.ytimg.com/vi/uAeh74TjtR8/mqdefault.jpg)







