Taccos

Try the checkdi.com online insurance broker. They transparently provide you with a bunch of alternative policies and are helpful in case of any questions. I have used them for years under their former name Mister Prakan. I went for the Tharnachat insurance. Great coverage (no deductible) and service, and very competitive prices. In case of a claim (I had some minor scratches) they send someone out to you to assess the damage within 24 hours. However, this guy hardly spoke any English - best to have a Thai native with you upon inspection date.

I had the same problem with my new frontloader some years ago. Found a YouTube video that addressed the matter. You need to remove the top lid and you will find a plastic valve that needs to be opened to the desired water level.

This is exactly what I am trying to do right now. However, having returned from a border run visa exempt in order to invalidate my O-A visa, the IO (Koh Samui and Surat Thani) is now refusing to grant me a non-O visa stating that this can only be obtained outside Thailand. Obviously visa agents are willing to assist for a fee of 23-30k bath. Are there any other options?