So I bought an Aqua Systems Electronic Digital Tap Timer at Bunnings in Brisbane (Australia). Here’s the link to the item. The main advantage of digital tap timers over the manual ones is that you can set a watering schedule lasting a week, instead of a daily schedule. I wanted my pot plants watered twice in a week for 20 minutes, not every day, and that’s where a digital tap timer comes in. Just a note: the Bunnings blurb says “The timer also has a manual ON – OFF watering feature and also a Rain OFF function which will pause the program during bouts of wet weather.” When I read this I thought it meant that the Rain OFF function automatically stops watering if it is raining. It doesn’t. You need to go to the unit and press the OFF button.
Quick review of the Aqua Systems Digital Tap Timer: Despite being the cheapest digital tap timer at Bunnings it worked brilliantly – easy to set up, easy to install, and most importantly it works – all my pot plants survived the ridiculously hot 2017 summer when we went away for a week thanks to this tap timer. On the downside, you need to unscrew the hazy cover to adjust anything, so it’s a pain to make adjustments, and once the cover is off the battery is right there and it looks rather not waterproof, so I fear you could destroy it just trying to stop a watering cycle. The more expensive ones have buttons that you can access without unscrewing. But if you want a cheap, once a year use, week long programmable timer, this is great. If you want something you will leave in place and can modify often (or pause when it rains), look to the more expensive ones.
Owner’s Manual: Well, as usual, I misplaced the owner’s manual – it is just one sheet of paper folded up to the size of a business card, so it is easy to lose (that’s my excuse anyway). I searched online for instructions on how to set the timer but could not find them. So when I finally found the paper instruction manual again I scanned it in. Below is a copy of the instructions. Sorry the quality isn’t great. The instructions are printed in black and white on cheap (greyish) paper, and are a bit small, so I have enlarged them as well.
How to Set the Aqua Systems Digital Tap Timer