Any tips for changing a central heating pump?

[RichardCranium]

Keep hold of his number. A good plumber these days is hard to find. That reminds me of a song.

Rikki don't lose that number
It's the only one you need
Send it off in a letter to yourself.

And a good heart, these days, is hard to find (a good heart)
True love, the lasting kind
A good heart, these days, is hard to find
So please be gentle with this heart of mine

Intro: Hey, Pisano!
It's the Super Mario Brothers' Super Show!

Uh-huh yeah
Uh, we're da Mario Brothers and plumbin's our game
we 're not like da others who get all the fame
if yo' sink is in trouble y'can call us on da double,
we're faster than the others, you'll be hooked on the brothers!

Uh!
I said, "hooked on the brothers!"
Chigga-Chigga Chigga-Chigga

Yo, y'in fo' a treat

so hang on to y'seat
get ready for adventure and remarkable feats
y'll meet koopas and troopas, the princess and the others
hangin' with the brothers you'll be hooked on the brothers

Yet again
Hooked, I say
Ohhhhhhh
Let's go!
The brothers!
The brothers!
The brothers!
The brothers!