Zeroth moment absorption maps of the (1,1,0)–(0,1,1) transition of para H₂O at 244.330 GHz in R Hya, S Pav, R Aql and IRC+10011. The extended configuration was used in R Hya, S Pav and R Aql while in IRC+10011 the combined extended and mid arrays were used. The map field of view is 100 × 100 mas except for IRC+10011 where it is 200 × 200 mas. The dotted white lines delineate the −3 and −5σ absorption contours. The red contour at (0,0) position delineate) the extent at half intensity of the continuum emission. The noise level is 5.4, 6.9, 5.2 and 6.3 mJy/beam km s⁻¹ for R Hya, S Pav, IRC+10011 and R Aql, respectively. The HPBW line beam (white ellipse) is (50 × 28) mas at PA 75° in R Hya (26 × 20) mas at PA −20° in S Pav, (27 × 20) mas a PA −30° in R Aql and (59 × 50) mas at PA 12° in IRC+10011. The continuum beam (red ellipse) is (34 × 25) mas at PA = 67° in R Hya, (25 × 20) mas at PA −13° in SI Pav, (24 × 22) mas at PA −13° in R Aql and (55 × 44) mas at PA 34° in IRC+10011. (The velocity intervals are −19.0. to 4.9, −19.7 to 4.3, 15.3 to 21.2 and 35.3 to 64.1km s⁻¹ for R Hya, S Pav, IRC+10011 and R Aql, respectively.)