In case you want to become a new toilet through apprenticeship, you will have to approach the local plumber's union, who can help you to find a professional plumber willing to hire an apprenticeship.
Examine the washer and replace it with a new one. Also replace screws in water line repair case they are old and damaged too. The new ones you buy should be durable and of good quality.
The con to time well spent is only if the fix or installation works. Suddenly, when a pipe is squirting water or the dishwasher is leaking all over the floor, that time seems wasted instead of well spent. Now your time is wasted, plus you have to pay for a professional plumber to come over and fix the mess. That time could have been spent doing something else, like golfing or swimming or gardening.
65. Anchoring factors: Seabed and holding ground, is my anchor suitable? Tidal flow, currents. Clear of fairways, channels and ferry routes. Adequate marks to find clear exit if we have to leave in a hurry. Length of stay. Depth of water now, next low water's depth, how much chain? Swinging circle, clear of other moored craft. Weather now and the forecast, do we have shelter? Distance to shore, suitable landing places. Distance to nearest pub.
These are people who would naturally refer to each other because they typically refer to each other. What about a "Home" referral team? people that support the "home" industry. More people are electing to keep their home and are willing to do the maintaining or fixing up. Electrician, plumber, window, roofer, siding, flooring, and so on. Think about these people getting together once a week to talk about projects that they are working on and creating a water line repair core of competent reliable partners that refer to each other. Inevitably, a person needs carpentry work after the electrician leaves.
And the way to know what's sufficient? Well, until the work is done an the bill paid you won't know for certain, but this is the best that can be suggested and normally works very well.
Bottom line is that it is now very easy for even a desk jockey to fix his own pipes. Go by the closet home improvement store on your way home. Pick up some of these fittings and impress the wife with talents that she did not know you had. You may even get brave and do that small plumbing project that she has been begging for. Now you can use these fittings to cut into that water line to run that new outside faucet or hookup that water filter yourself. With the push type fitting plumbing has been made easy enough for anyone to be able to do it.