Soil PH runoff???

So

I have been watering my plants with PHed water of about 6.8 using the Hanna PH meter.

Today I though I would check my run off PH level. It came in a 5.2!!! But the plants seem to be very healthy and growing at a fast rate.

Soil: Happy Frog
Ferts: Big Bloom, Grow Big
Plants: Low Ryder 2
Light: 1040 Watts of actual CFL.

What should I do. Not worry about it. Get a soil PH tester? Or how do I adjust the level.
Please give advice!

in soil, i'd be ph'ing to 6.5. your run-off isn't the best way to check ph. the reason being, nutes build up in the bottom (and throughout) part of the medium. you may want to consider a feed, feed flush regimen. (you should never chase ph. find the reason.)

Thanks man. It was the last bit of water draining through I tested, so I am not going to worry about it. As the happy frog is PH ballanced and I have only been watering it with water that is 6.8 - 6.3 PH.