The British Press; or, Morning Literary Advertiser.
London, England, 1821-11-05 00:00:00

WA fl 11-WORKS.

Extracts onm Minute,. of the Evidence taken
before at C..inniitter of the House of Commons on
the subject of • Simply of Water to the Metropolis.
Printed by order of the Noun.
Comparison of original rapense between as Iron awl wooden
pipe of four inches diameter.
Vow-inch iron pipe, hod down in the year 1810, cost
11• 81. iwr yard..
Four inch wooden pipe, laid down in the year 1810, cost
So. Lt. per yard.

Estimate of the expeise of probable repairs of iron and
w00d... pipes of four incises diameter during the course of
thirty yeas.
Four inch iron pipesr—Espense of repairs during Wray
years, including proportion of taking up, elesuiug ancl relay.
nig, which will be necessary owe in fifty yeas., 3.. 13d.
per yard.
Four-lath wooden pipes:—Expense of repairs during
thirty years, inelwiliag twice renewing, mud proportion of
two years more, 1 la: 23e1. per yard.
Fursuaut so so order of she *1(11 Coasinittie respecting
the supply of water to the metropolis.
.1 THO 9. SIMPSON,
Inspretor-General to the Chelsea Waterwoeks.
Fahmaimp.9l, SOIL
Remarks on the comparison of the original expense between
an iron sod 'swedes pipe of four inches diameter, sod
expense of probable repairs of each during tbs course of
thirty years.
With afore' to the cost of four-inch pipe laid down in the
year 18W, it is necessary to observe, that 11s. 9d. per yard
is fur straight pipes only; and there will be an additional
expense for branch, elbow, and ping pipes; also for cocks,
sod for fining ferrules, all of which are greater iis iron than
in wooden pipes; that is to say, the extra expense will
armed to 23d. per yard, in a pipe of four inches diameter.
The follow/pig ere three particular instincts of the mill-
ion of 'the orifices of irou pipes, which came uudrr my
observatiop
In the year 1789, in consequence of the great difficulty
experienced iu supplying W'ioilsoc Castle with water, I was
ordered by the Surveyor-General of his Majesty's Office of
Workr, to ascertain the canoe, if possible. The engioe
which supplies the Castle is worked by the fall of the River
Thames, and the pumps are supplied (rum a spring. Upon
examination, I bound the leaden conveyance pipe for the
unglue to the Castie, very ilefectice, and recuineriended two.
and-MA:llr inch iron pipe to be sutsititisied, which wwsidone.
In the par 18105, the same d. ficienco,of supply took place
as in 1799, but out from the same cause. I had, from my
rap:lll.•rleallYa a, nenceil the iuersistatinli u'f iron pipes, and
ronclisiled She pipe was simian' slopped; and having recom-
noroiled she pipe 10 he take up, 1 te-emitted the orifice was
inure than one inch diameter, the oicrustation being
'wally equal all roomd the iiiternal surface of the pipe.
In the year 1791 it was brood Necessary to take up and
relay a ticelse-inch irou folio (of Il.n h pipes, which %vete
orixiiially laid down In the year 1748) Crum the Chelsea
‘Vaterviiii Its esigiite to the reservoir in Ilyilell)sik, iu coos.-
grotto* of the joints being pi nched. The introststiou tin she
lutenist surface of ibis main was in iiiegis:ar lumps, and
op.!. an verge shout half au inch th:ck ; the diameter of
the pope being couiracied to nearly eleven inches.
In the year 1819 the diffienlty of supplying the reservoir
in liensiogiou Gorden., near the palace, had lice/eased to
en eaten', ihat it became alisolutt.ly necessary to
1•lIl Ibe coolie; viol !metre lakeii the proper steps, I found
the pipe sits comforted toy surf u•totida. The pipe was
Originally five inches t.ismet. r; and from the Chelsea
wieferweisks bunks was laid by govionment in the yesr 1751.
The pipe was rouliaciell to three iuclus diameter, and the
inriu• 0000 cowered the internal surface in irregulsr

Errs[ the futegoiirg oh lion. ■n itsfereare oily he
draw u, that the MerlWallkill out the 1111444 M! Surfs.. of ices
pipe*, will, ill She course of tiny yeas, so contract iheurificsa
am it still he ab.!.lntelc neessiary fur the pipes to be
t .1. u up, cleaned, mud r• tool, duriug which psocess saute of
them u.ay he lojgoesl. I: had Insig been discovered. it. the
insi..nre of the pipe which supple., the reservoir in Kensing-
ton gardens frosts the Chelsea Waterworks souls, that peat
.101'6,11i, !sad as u. u rn 111111:1114 She %Cr Vire, and the cause
was uuksiowss rtrtil Ilie love was examined, on that the in.
thw.thOusi had, it most be sorssoused, urseinatcd some 'rare
Iu f.se that in root. It is iircesssry its observe, ilsal by the
proveleise.roethatation, and colon ipsessu russirnetion of the
irons.• of the pipe*, the 11. ieti iiii of the water passing through
1:o ea will be itseresowtt, and either a greater purer ur luilitr
i.eti will be r. goo, it Is, force Ole bailee quantity of water
titiuugh area pop s at Ste end of silty sesrs, than ens to igiss.
ally showed. Cp./ribs' cuuiputatsuu it inAy be slated, that the
loop.. move mosposile iiiii cof power or of l we, will ueu•
iliesll a curreispowding ;nes ease of. speller, which in the fiftieth
year wiay amussut to hay per nut. ware than was furoll
►ufirieul it the first year. It is also nerroviry to °Wirer,
that this roger" of encrust Athol in or.ou pipes a calcolated
opus: a sesppuattiou that she river Thausea water only is seed
an the lips►.
'll.ere i. smother material consideration in the expellee of
°bible orp.irs of Iron popes whirls is is.., issellharsi IY
lbr tifimisle; sta. the expen.e of the probable ►epairy, of
twos ism be gsswairr is area Slum tie wuosieu pfrpeet sad bay.
lag eat. fully estimated mirk extra espeu.e, I thud
co.'s, of thirty years it will autuout to three peree per yard
iw a Cear•weh trots pipe. • ... •
With .caper[ to tha duration of woollen pipes is the dis-
tr./A sui•pl:cd by the CIIL lies Waters:rusks, the water betel