Questions about nutes and flushing

ok let me start off by saying this is my first grow....my plants are around 2 months of vegging and ive been using miracle grow as fertilizer i think the NPK level is around 27-14-9 or something like that i dont have it in front of me......anyway im hoping to start flowering within the next week or so and was wondering if i should flush out the nutrients before flowering and switching nutes or is it ok to just switch the nutrients.....also i found some blooming nutes in my garage that are 9-59-9 is this adequate for flowering or should i look for something with more potassium????.....i dont have a problem with spending a lil cash on some bloom burst or whatever nutrients you people use....any suggestions on what nutrients you use for flowering or methods of flushing would be awesome.

thanks in advance guys

Get rid of the miracle grow. Find your local hydro shop and pick up a bottle of Pure Blend Pro grow and Pure blend pro bloom. It's an all in one solution that includes all of the micro nutes needed. It's also pH balanced. Can't go wrong.

Flush by taking enough water to fill three or four times the volume of your pot. Let it sit for 24 hours to evaporate the chlorine. Check the pH and run all of the water through each of your plants. Make sure the pot can drain properly. You'll be good to go.

thanks man