will my veggies drown (with videos)
Disclosure: this thread covers two topics, the watering of veggies, and the topology of a drip irrigation system. Rather than posting in two separate forums, I decided that it would be more appropriate to post it here since the latter topic ultimately affects the former topic. So if anyone has an issue with this, please move on and don't post any negative comments.
Otherwise, feel free to read on....
This year is my first attempt at drip irrigating my raised vegetable beds and the system I designed and implemented needs some tweaking to prevent my veggies from drowning.
To help you help me resolve this (if at all necessary) I posted two videos of my irrigation system in action below. But before viewing them, please read on...
After putting my cukes, squash, zuchinni, lettuce, and shallots in the ground (yesterday and today) I finished the final steps of my irrigation system by installing drip lines and staked drippers.
The drip lines are for my herbs, lettuce, carrots, dill, shallots, and they are working as expected. The staked drippers are for my tomatoes (planting next week), cucumbers, zuchinni, and squash.
The problem I am having is that my drippers (the 2 GPH staked ones that were recommended by the retailer) are literally pouring out a stream of water and causing a ponding effect. This I didn't expect. It wasn't until today that I realized that the demo video on their website did not include the 2GPH version, only the 0.5 GPH version (which actually dripped instead of streaming).
Fortunately I planned ahead and inserted 1/4 turn shut off valves at every point I tapped the 1/4" tubing into the 1/2" tubing. By closing the valves half way I was able to slow the stream of water down. I'm thinking that instead of the 2GPH drippers I should have purchased the 0.5 GPH drippers.
Below is the link to the drippers I have, then two links to two videos that are less than 3 min each. In the first video you can see how the water is streaming out when my valves are fully open.
In the second video, you can see the effect of turning the valves off half way. If I keep turning the valves I can get the drippers to actually drip. But is this the right thing to do?
Any advice for how my drippers should be working would be appreciated. I don't want to end up drowning my veggies.
My plan (for this year) is to connect a two hour countdown timer so that after work I can connect my hose (when watering is needed) and then two hours later disconnect it. If my system works out as planned, next year I will be running PVC under the ground from my hose to the garden and I will install a dedicated round-the-clock drip timer.
Here are the links referenced above: