Hi - I have been in a similar situation. I started out with a small Murrays water bag on my first boat, a Prindle 16. It worked, but it was very heavy to lift onto your shoulder, esp. when cold and tired, etc. A much better solution was to get the large Murrays waterbag, which includes 4:1 blocks and replaces the whole righting line for solo righting. It holds about 200+ lbs of water, and I have used is successfully several times on a Prindle 19 after solo capsizes. I highly recommend this system (be sure to get the blocks!). You can keep the system even if you move to another boat later on, so the price is worth it. <br><br>Sail fast and have fun,<br>Alan Thompson<br>I20 - San Diego<br><br>http://www.murrays.com<br><br>