absolutely! helps prevent appliance burnout from a close lightning strike, but the accompanying induction surge. . again, a little prevention maintenance can go along way

Update.
I had Dunstin & Son in this week. Replaced all push/pull valves with quarter turn stainless valves and hoses. Completely rebuilt all inards of all toilets. Replaced two outside faucets.

Very knowledgeable, polite, on time, excellent communications at a reasonable price.

My days of DIY are behind me....stooping and bending (no longer flexible enough).

yes, my DIY days are slowly dwindling as well, stooping for long periods hurts the back, and strength is definitely no longer here or there.

I'd like to get all this done,too. Could you give me an idea of price, so that I can budget for it?

Mike Scott Plumbing charges $60 per valve. The average house has about 17 plastic valves. So, you can budget about $1,000 for the project. But, if you shop around, you can probably get it done for somewhat less. Personally, I would only hire a licensed plumber.

get a price quote for both shark bite valves and glued on valves. .

glued on valves will last longer and be less likely to fail, as the shahk byte uses a circular gasket for the seal, and can fail over a long period of time.

My Accor push/pull valves were over 20 years old with the circular o-ring never had one drop of leak at joint. On Accor valve it the push/pull plastic valve that weakest point, the fitting, locking onto pipe, and hoses wasn’t problem for me. Actually none of them failed but I was worried with age of them.

You might be able to replace the flow value by pulling it off of the pipe it is on in the toilet, To be safe turn the water off to the house. There is probably a grey "nut" to pull up on the pipe that will let you remove the top part. Go to youtube and look for installing the values and you can probably find one that shows you how to do this if you look long enough. You can practice on the one you buy before doing anything with the old value. Note the instructions will say not to do this.

Careful when shutting off water, when you turn it back on you can blow your pressure tank bladder. Too much water pressure at once. Turn a faucet on first then turn the water on.