Dog Opens Doors - OMG the Flies!! Help!

Ok, Blake's mom has a miniature Schnauzer named Bessi. Bessi has learned how to open the family's sliding screen door to the back yard. This didn't matter before, because they would lock the door and that kept it from getting opened. But now, she's figured out how to force it open anyway. Everyone is gone during the day, so when she opens it, the door sits open all day and droves of flies go in. And this summer, out in the country, the flies are BAD! And the word "bad" is quite an understatement.

We use their shower because we're in an RV right now so we don't have to live in the house, and I think I killed like 50 flies in the bathroom before I could even take a shower this afternoon. Training or confining Bessi is not an option. They won't do it (Blake's family doesn't train. Ever.), and Bessi just climbs/plows through any gates in her way. And Blake's mom will not close the house up during the day because she likes the air to circulate. So this brings me to my question:

Does anyone know of a good, inexpensive way to dog-proof a sliding screen door, that works for both inside and out? People still need to walk in and out it, and I want to be able to go in that house and do dishes/laundry/shower without being covered in a blanket of flies.

Here is the lock the door currently has:
http://www.lowes.com/pd_139080-76018-A+150_0__?productId=3013094

Looks pretty flimsy to me.

I'm looking for locks, latches, or homemade ideas. Any help is appreciated. Ready set go! =D

:rofl1: I had the same problem with Maddie!! I just trained her not to do it, though. That must be very frustrating for you, hope you find something that works, and fast!

Home made ideas... hmm.... velcro comes to mind, we use velcro a lot at the day care. A velcro strip towards the top connecting the door to the frame may work. Also, we use these at the center as well http://www.aliexpress.com/product-f...ety-Lock-For-Child-Kids-Baby-wholesalers.html

For my sliding glass door, I use a plastic tube, it sits on the inside of the track and doesn't allow it to open unless I pick it up. That doesn't work for the screen, though, unless its placed on the outside. Which doesn't help me any, but just incase it would help you...

Have you ever seen those screen things with a split in the middle and there is magnets on it so it closes back shut after being opened?

We have one, and it works fairly well. Sometimes after a dog runs out the bottom of it, the bottom doesn't quite close all the way but at least the majority of the screen closes again. The door can also open/close easily even when screen is in.

It's like this: http://www.yourstoreonline.net/magn...product.html?gclid=clgu_ykz_lecfyhm4aodsleaqg

I don't know if it's exactly what you had in mind, but just a thought

Eww I hate flies!!!!!!!!!!!!!!!!! I hope you can figure something out. I'd just block it with a chair or something that she can't get through when you're gone.

My guy Balto didn't bother opening the screen door, he just runs through it. I finally got a dog guard for the screen. I have lessened the fly situation with a fly trap in the back of my yard. It's really scary when it's full of flys. It's one of these, I got it from Home Depot. http://www.rescue.com/product/disposable-fly-trap I only get a few in the house. But I;d like zero.

I was thinking about that one too! "Magic Mesh" screen door, if you get coupons for BB&B they have it, http://www.bedbathandbeyond.com/product.asp?mc=1&SKU=18655993&RN=889&